Home / 27,891.61-38,490.42-15,144.73

Finding the Fourth Proportional to 27,891.61, 38,490.42 and 15,144.73

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Solution

The fourth proportional to 27,891.61, 38,490.42 and 15,144.73 is: 20,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,891.61 : 38,490.42 = 15,144.73 : x
  2. Step 2: Convert to fraction form
    27,891.61/38,490.42 = 15,144.73/x
  3. Step 3: Cross multiply
    27,891.61x = 38,490.42 × 15,144.73
  4. Step 4: Simplify right side
    27,891.61x = 582,927,018.49
  5. Step 5: Solve for x
    x = 582,927,018.49/27,891.61
  6. Step 6: Final answer
    x = 20,899.73

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Double scale
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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.