Home / 38,901.79-58,346.25-13,938.13

Finding the Fourth Proportional to 38,901.79, 58,346.25 and 13,938.13

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Solution

The fourth proportional to 38,901.79, 58,346.25 and 13,938.13 is: 20,904.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,901.79 : 58,346.25 = 13,938.13 : x
  2. Step 2: Convert to fraction form
    38,901.79/58,346.25 = 13,938.13/x
  3. Step 3: Cross multiply
    38,901.79x = 58,346.25 × 13,938.13
  4. Step 4: Simplify right side
    38,901.79x = 813,237,419.38
  5. Step 5: Solve for x
    x = 813,237,419.38/38,901.79
  6. Step 6: Final answer
    x = 20,904.89

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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.