Home / 38,470.10-57,705.15-21,881.30

Finding the Fourth Proportional to 38,470.10, 57,705.15 and 21,881.30

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Solution

The fourth proportional to 38,470.10, 57,705.15 and 21,881.30 is: 32,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,470.10 : 57,705.15 = 21,881.30 : x
  2. Step 2: Convert to fraction form
    38,470.10/57,705.15 = 21,881.30/x
  3. Step 3: Cross multiply
    38,470.10x = 57,705.15 × 21,881.30
  4. Step 4: Simplify right side
    38,470.10x = 1,262,663,698.70
  5. Step 5: Solve for x
    x = 1,262,663,698.70/38,470.10
  6. Step 6: Final answer
    x = 32,821.95

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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.