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Finding the Fourth Proportional to 38,677.80, 58,019.40 and 15,301.20

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Solution

The fourth proportional to 38,677.80, 58,019.40 and 15,301.20 is: 22,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,677.80 : 58,019.40 = 15,301.20 : x
  2. Step 2: Convert to fraction form
    38,677.80/58,019.40 = 15,301.20/x
  3. Step 3: Cross multiply
    38,677.80x = 58,019.40 × 15,301.20
  4. Step 4: Simplify right side
    38,677.80x = 887,766,443.28
  5. Step 5: Solve for x
    x = 887,766,443.28/38,677.80
  6. Step 6: Final answer
    x = 22,952.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.