Home / 38,456.64-57,684.70-20,695.66

Finding the Fourth Proportional to 38,456.64, 57,684.70 and 20,695.66

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Solution

The fourth proportional to 38,456.64, 57,684.70 and 20,695.66 is: 31,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,456.64 : 57,684.70 = 20,695.66 : x
  2. Step 2: Convert to fraction form
    38,456.64/57,684.70 = 20,695.66/x
  3. Step 3: Cross multiply
    38,456.64x = 57,684.70 × 20,695.66
  4. Step 4: Simplify right side
    38,456.64x = 1,193,822,747.95
  5. Step 5: Solve for x
    x = 1,193,822,747.95/38,456.64
  6. Step 6: Final answer
    x = 31,043.35

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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.