Home / 26,717.07-36,872.31-15,387

Finding the Fourth Proportional to 26,717.07, 36,872.31 and 15,387

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Solution

The fourth proportional to 26,717.07, 36,872.31 and 15,387 is: 21,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,717.07 : 36,872.31 = 15,387 : x
  2. Step 2: Convert to fraction form
    26,717.07/36,872.31 = 15,387/x
  3. Step 3: Cross multiply
    26,717.07x = 36,872.31 × 15,387
  4. Step 4: Simplify right side
    26,717.07x = 567,354,233.97
  5. Step 5: Solve for x
    x = 567,354,233.97/26,717.07
  6. Step 6: Final answer
    x = 21,235.65

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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.