Home / 38,513.30-57,778.05-21,859.70

Finding the Fourth Proportional to 38,513.30, 57,778.05 and 21,859.70

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Solution

The fourth proportional to 38,513.30, 57,778.05 and 21,859.70 is: 32,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,513.30 : 57,778.05 = 21,859.70 : x
  2. Step 2: Convert to fraction form
    38,513.30/57,778.05 = 21,859.70/x
  3. Step 3: Cross multiply
    38,513.30x = 57,778.05 × 21,859.70
  4. Step 4: Simplify right side
    38,513.30x = 1,263,010,839.59
  5. Step 5: Solve for x
    x = 1,263,010,839.59/38,513.30
  6. Step 6: Final answer
    x = 32,794.15

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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.