Home / 38,414.88-57,630.15-21,782.34

Finding the Fourth Proportional to 38,414.88, 57,630.15 and 21,782.34

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Solution

The fourth proportional to 38,414.88, 57,630.15 and 21,782.34 is: 32,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,414.88 : 57,630.15 = 21,782.34 : x
  2. Step 2: Convert to fraction form
    38,414.88/57,630.15 = 21,782.34/x
  3. Step 3: Cross multiply
    38,414.88x = 57,630.15 × 21,782.34
  4. Step 4: Simplify right side
    38,414.88x = 1,255,319,521.55
  5. Step 5: Solve for x
    x = 1,255,319,521.55/38,414.88
  6. Step 6: Final answer
    x = 32,677.95

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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.