Home / 30,147.30-41,603.58-16,718.76

Finding the Fourth Proportional to 30,147.30, 41,603.58 and 16,718.76

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Solution

The fourth proportional to 30,147.30, 41,603.58 and 16,718.76 is: 23,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147.30 : 41,603.58 = 16,718.76 : x
  2. Step 2: Convert to fraction form
    30,147.30/41,603.58 = 16,718.76/x
  3. Step 3: Cross multiply
    30,147.30x = 41,603.58 × 16,718.76
  4. Step 4: Simplify right side
    30,147.30x = 695,560,269.16
  5. Step 5: Solve for x
    x = 695,560,269.16/30,147.30
  6. Step 6: Final answer
    x = 23,072.06

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Find fourth proportional to 15,073.65, 20,801.79 and 8,359.38
Half scale
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Double scale
Find fourth proportional to 30,148.30, 41,604.96 and 16,719.76
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.