Home / 27,699.98-38,229.17-15,765.44

Finding the Fourth Proportional to 27,699.98, 38,229.17 and 15,765.44

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Solution

The fourth proportional to 27,699.98, 38,229.17 and 15,765.44 is: 21,758.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,699.98 : 38,229.17 = 15,765.44 : x
  2. Step 2: Convert to fraction form
    27,699.98/38,229.17 = 15,765.44/x
  3. Step 3: Cross multiply
    27,699.98x = 38,229.17 × 15,765.44
  4. Step 4: Simplify right side
    27,699.98x = 602,699,415.91
  5. Step 5: Solve for x
    x = 602,699,415.91/27,699.98
  6. Step 6: Final answer
    x = 21,758.12

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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.