Home / 29,239.08-40,318.17-18,615.12

Finding the Fourth Proportional to 29,239.08, 40,318.17 and 18,615.12

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Solution

The fourth proportional to 29,239.08, 40,318.17 and 18,615.12 is: 25,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,239.08 : 40,318.17 = 18,615.12 : x
  2. Step 2: Convert to fraction form
    29,239.08/40,318.17 = 18,615.12/x
  3. Step 3: Cross multiply
    29,239.08x = 40,318.17 × 18,615.12
  4. Step 4: Simplify right side
    29,239.08x = 750,527,572.73
  5. Step 5: Solve for x
    x = 750,527,572.73/29,239.08
  6. Step 6: Final answer
    x = 25,668.65

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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.