Home / 22,301.04-30,775.68-12,742.20

Finding the Fourth Proportional to 22,301.04, 30,775.68 and 12,742.20

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Solution

The fourth proportional to 22,301.04, 30,775.68 and 12,742.20 is: 17,584.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,301.04 : 30,775.68 = 12,742.20 : x
  2. Step 2: Convert to fraction form
    22,301.04/30,775.68 = 12,742.20/x
  3. Step 3: Cross multiply
    22,301.04x = 30,775.68 × 12,742.20
  4. Step 4: Simplify right side
    22,301.04x = 392,149,869.70
  5. Step 5: Solve for x
    x = 392,149,869.70/22,301.04
  6. Step 6: Final answer
    x = 17,584.38

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Double scale
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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.