Home / 38,691.58-53,397.62-21,695.55

Finding the Fourth Proportional to 38,691.58, 53,397.62 and 21,695.55

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Solution

The fourth proportional to 38,691.58, 53,397.62 and 21,695.55 is: 29,941.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,691.58 : 53,397.62 = 21,695.55 : x
  2. Step 2: Convert to fraction form
    38,691.58/53,397.62 = 21,695.55/x
  3. Step 3: Cross multiply
    38,691.58x = 53,397.62 × 21,695.55
  4. Step 4: Simplify right side
    38,691.58x = 1,158,490,734.59
  5. Step 5: Solve for x
    x = 1,158,490,734.59/38,691.58
  6. Step 6: Final answer
    x = 29,941.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.