Home / 27,899.70-38,490.69-15,956.64

Finding the Fourth Proportional to 27,899.70, 38,490.69 and 15,956.64

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Solution

The fourth proportional to 27,899.70, 38,490.69 and 15,956.64 is: 22,013.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.70 : 38,490.69 = 15,956.64 : x
  2. Step 2: Convert to fraction form
    27,899.70/38,490.69 = 15,956.64/x
  3. Step 3: Cross multiply
    27,899.70x = 38,490.69 × 15,956.64
  4. Step 4: Simplify right side
    27,899.70x = 614,182,083.68
  5. Step 5: Solve for x
    x = 614,182,083.68/27,899.70
  6. Step 6: Final answer
    x = 22,013.93

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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.