Home / 22,465.55-31,002.14-13,397.20

Finding the Fourth Proportional to 22,465.55, 31,002.14 and 13,397.20

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Solution

The fourth proportional to 22,465.55, 31,002.14 and 13,397.20 is: 18,487.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,465.55 : 31,002.14 = 13,397.20 : x
  2. Step 2: Convert to fraction form
    22,465.55/31,002.14 = 13,397.20/x
  3. Step 3: Cross multiply
    22,465.55x = 31,002.14 × 13,397.20
  4. Step 4: Simplify right side
    22,465.55x = 415,341,826.00
  5. Step 5: Solve for x
    x = 415,341,826.00/22,465.55
  6. Step 6: Final answer
    x = 18,487.94

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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.