Home / 27,215.11-37,557.03-15,115.69

Finding the Fourth Proportional to 27,215.11, 37,557.03 and 15,115.69

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Solution

The fourth proportional to 27,215.11, 37,557.03 and 15,115.69 is: 20,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.11 : 37,557.03 = 15,115.69 : x
  2. Step 2: Convert to fraction form
    27,215.11/37,557.03 = 15,115.69/x
  3. Step 3: Cross multiply
    27,215.11x = 37,557.03 × 15,115.69
  4. Step 4: Simplify right side
    27,215.11x = 567,700,422.80
  5. Step 5: Solve for x
    x = 567,700,422.80/27,215.11
  6. Step 6: Final answer
    x = 20,859.75

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Half scale
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Double scale
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Similar ratio
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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.