Home / 38,640.32-57,921.26-21,965.89

Finding the Fourth Proportional to 38,640.32, 57,921.26 and 21,965.89

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Solution

The fourth proportional to 38,640.32, 57,921.26 and 21,965.89 is: 32,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,640.32 : 57,921.26 = 21,965.89 : x
  2. Step 2: Convert to fraction form
    38,640.32/57,921.26 = 21,965.89/x
  3. Step 3: Cross multiply
    38,640.32x = 57,921.26 × 21,965.89
  4. Step 4: Simplify right side
    38,640.32x = 1,272,292,070.77
  5. Step 5: Solve for x
    x = 1,272,292,070.77/38,640.32
  6. Step 6: Final answer
    x = 32,926.55

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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.