Home / 27,931.24-38,545.50-15,356.26

Finding the Fourth Proportional to 27,931.24, 38,545.50 and 15,356.26

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Solution

The fourth proportional to 27,931.24, 38,545.50 and 15,356.26 is: 21,191.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,931.24 : 38,545.50 = 15,356.26 : x
  2. Step 2: Convert to fraction form
    27,931.24/38,545.50 = 15,356.26/x
  3. Step 3: Cross multiply
    27,931.24x = 38,545.50 × 15,356.26
  4. Step 4: Simplify right side
    27,931.24x = 591,914,719.83
  5. Step 5: Solve for x
    x = 591,914,719.83/27,931.24
  6. Step 6: Final answer
    x = 21,191.85

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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.