Home / 27,456.45-37,892.25-15,521.91

Finding the Fourth Proportional to 27,456.45, 37,892.25 and 15,521.91

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Solution

The fourth proportional to 27,456.45, 37,892.25 and 15,521.91 is: 21,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,456.45 : 37,892.25 = 15,521.91 : x
  2. Step 2: Convert to fraction form
    27,456.45/37,892.25 = 15,521.91/x
  3. Step 3: Cross multiply
    27,456.45x = 37,892.25 × 15,521.91
  4. Step 4: Simplify right side
    27,456.45x = 588,160,094.20
  5. Step 5: Solve for x
    x = 588,160,094.20/27,456.45
  6. Step 6: Final answer
    x = 21,421.56

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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.