Home / 30,151.30-41,609.10-16,722.76

Finding the Fourth Proportional to 30,151.30, 41,609.10 and 16,722.76

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Solution

The fourth proportional to 30,151.30, 41,609.10 and 16,722.76 is: 23,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151.30 : 41,609.10 = 16,722.76 : x
  2. Step 2: Convert to fraction form
    30,151.30/41,609.10 = 16,722.76/x
  3. Step 3: Cross multiply
    30,151.30x = 41,609.10 × 16,722.76
  4. Step 4: Simplify right side
    30,151.30x = 695,818,993.12
  5. Step 5: Solve for x
    x = 695,818,993.12/30,151.30
  6. Step 6: Final answer
    x = 23,077.58

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Find fourth proportional to 15,075.65, 20,804.55 and 8,361.38
Half scale
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Double scale
Find fourth proportional to 30,152.30, 41,610.48 and 16,723.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.