Home / 38,330.72-52,897.42-21,103.61

Finding the Fourth Proportional to 38,330.72, 52,897.42 and 21,103.61

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Solution

The fourth proportional to 38,330.72, 52,897.42 and 21,103.61 is: 29,123.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,330.72 : 52,897.42 = 21,103.61 : x
  2. Step 2: Convert to fraction form
    38,330.72/52,897.42 = 21,103.61/x
  3. Step 3: Cross multiply
    38,330.72x = 52,897.42 × 21,103.61
  4. Step 4: Simplify right side
    38,330.72x = 1,116,326,573.66
  5. Step 5: Solve for x
    x = 1,116,326,573.66/38,330.72
  6. Step 6: Final answer
    x = 29,123.55

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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.