Home / 39,306.87-54,244.45-21,402.86

Finding the Fourth Proportional to 39,306.87, 54,244.45 and 21,402.86

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Solution

The fourth proportional to 39,306.87, 54,244.45 and 21,402.86 is: 29,536.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,306.87 : 54,244.45 = 21,402.86 : x
  2. Step 2: Convert to fraction form
    39,306.87/54,244.45 = 21,402.86/x
  3. Step 3: Cross multiply
    39,306.87x = 54,244.45 × 21,402.86
  4. Step 4: Simplify right side
    39,306.87x = 1,160,986,369.13
  5. Step 5: Solve for x
    x = 1,160,986,369.13/39,306.87
  6. Step 6: Final answer
    x = 29,536.47

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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.