Home / 27,553.92-38,023.56-15,618.36

Finding the Fourth Proportional to 27,553.92, 38,023.56 and 15,618.36

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Solution

The fourth proportional to 27,553.92, 38,023.56 and 15,618.36 is: 21,552.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,553.92 : 38,023.56 = 15,618.36 : x
  2. Step 2: Convert to fraction form
    27,553.92/38,023.56 = 15,618.36/x
  3. Step 3: Cross multiply
    27,553.92x = 38,023.56 × 15,618.36
  4. Step 4: Simplify right side
    27,553.92x = 593,865,648.56
  5. Step 5: Solve for x
    x = 593,865,648.56/27,553.92
  6. Step 6: Final answer
    x = 21,552.86

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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.