Home / 38,534.13-53,176.30-21,537.90

Finding the Fourth Proportional to 38,534.13, 53,176.30 and 21,537.90

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Solution

The fourth proportional to 38,534.13, 53,176.30 and 21,537.90 is: 29,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,534.13 : 53,176.30 = 21,537.90 : x
  2. Step 2: Convert to fraction form
    38,534.13/53,176.30 = 21,537.90/x
  3. Step 3: Cross multiply
    38,534.13x = 53,176.30 × 21,537.90
  4. Step 4: Simplify right side
    38,534.13x = 1,145,305,777.93
  5. Step 5: Solve for x
    x = 1,145,305,777.93/38,534.13
  6. Step 6: Final answer
    x = 29,721.85

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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.