Home / 38,562.81-57,778.20-21,044.94

Finding the Fourth Proportional to 38,562.81, 57,778.20 and 21,044.94

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Solution

The fourth proportional to 38,562.81, 57,778.20 and 21,044.94 is: 31,531.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,562.81 : 57,778.20 = 21,044.94 : x
  2. Step 2: Convert to fraction form
    38,562.81/57,778.20 = 21,044.94/x
  3. Step 3: Cross multiply
    38,562.81x = 57,778.20 × 21,044.94
  4. Step 4: Simplify right side
    38,562.81x = 1,215,938,752.31
  5. Step 5: Solve for x
    x = 1,215,938,752.31/38,562.81
  6. Step 6: Final answer
    x = 31,531.38

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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.