Home / 39,631.44-54,691.40-21,726.07

Finding the Fourth Proportional to 39,631.44, 54,691.40 and 21,726.07

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Solution

The fourth proportional to 39,631.44, 54,691.40 and 21,726.07 is: 29,981.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631.44 : 54,691.40 = 21,726.07 : x
  2. Step 2: Convert to fraction form
    39,631.44/54,691.40 = 21,726.07/x
  3. Step 3: Cross multiply
    39,631.44x = 54,691.40 × 21,726.07
  4. Step 4: Simplify right side
    39,631.44x = 1,188,228,939.44
  5. Step 5: Solve for x
    x = 1,188,228,939.44/39,631.44
  6. Step 6: Final answer
    x = 29,981.98

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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.