Home / 27,580.80-38,061.24-15,644.04

Finding the Fourth Proportional to 27,580.80, 38,061.24 and 15,644.04

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Solution

The fourth proportional to 27,580.80, 38,061.24 and 15,644.04 is: 21,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,580.80 : 38,061.24 = 15,644.04 : x
  2. Step 2: Convert to fraction form
    27,580.80/38,061.24 = 15,644.04/x
  3. Step 3: Cross multiply
    27,580.80x = 38,061.24 × 15,644.04
  4. Step 4: Simplify right side
    27,580.80x = 595,431,447.61
  5. Step 5: Solve for x
    x = 595,431,447.61/27,580.80
  6. Step 6: Final answer
    x = 21,588.62

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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.