Home / 22,115.28-30,518.76-13,162.68

Finding the Fourth Proportional to 22,115.28, 30,518.76 and 13,162.68

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Solution

The fourth proportional to 22,115.28, 30,518.76 and 13,162.68 is: 18,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.28 : 30,518.76 = 13,162.68 : x
  2. Step 2: Convert to fraction form
    22,115.28/30,518.76 = 13,162.68/x
  3. Step 3: Cross multiply
    22,115.28x = 30,518.76 × 13,162.68
  4. Step 4: Simplify right side
    22,115.28x = 401,708,671.88
  5. Step 5: Solve for x
    x = 401,708,671.88/22,115.28
  6. Step 6: Final answer
    x = 18,164.30

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Find fourth proportional to 11,057.64, 15,259.38 and 6,581.34
Half scale
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Double scale
Find fourth proportional to 22,116.28, 30,520.14 and 13,163.68
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.