Home / 39,352.16-54,306.05-21,447.20

Finding the Fourth Proportional to 39,352.16, 54,306.05 and 21,447.20

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Solution

The fourth proportional to 39,352.16, 54,306.05 and 21,447.20 is: 29,597.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,352.16 : 54,306.05 = 21,447.20 : x
  2. Step 2: Convert to fraction form
    39,352.16/54,306.05 = 21,447.20/x
  3. Step 3: Cross multiply
    39,352.16x = 54,306.05 × 21,447.20
  4. Step 4: Simplify right side
    39,352.16x = 1,164,712,336.79
  5. Step 5: Solve for x
    x = 1,164,712,336.79/39,352.16
  6. Step 6: Final answer
    x = 29,597.17

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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.