Home / 38,755.92-58,139.39-13,788.62

Finding the Fourth Proportional to 38,755.92, 58,139.39 and 13,788.62

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Solution

The fourth proportional to 38,755.92, 58,139.39 and 13,788.62 is: 20,684.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,755.92 : 58,139.39 = 13,788.62 : x
  2. Step 2: Convert to fraction form
    38,755.92/58,139.39 = 13,788.62/x
  3. Step 3: Cross multiply
    38,755.92x = 58,139.39 × 13,788.62
  4. Step 4: Simplify right side
    38,755.92x = 801,661,955.74
  5. Step 5: Solve for x
    x = 801,661,955.74/38,755.92
  6. Step 6: Final answer
    x = 20,684.89

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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.