Home / 27,616.31-38,108.17-15,515.85

Finding the Fourth Proportional to 27,616.31, 38,108.17 and 15,515.85

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Solution

The fourth proportional to 27,616.31, 38,108.17 and 15,515.85 is: 21,410.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,616.31 : 38,108.17 = 15,515.85 : x
  2. Step 2: Convert to fraction form
    27,616.31/38,108.17 = 15,515.85/x
  3. Step 3: Cross multiply
    27,616.31x = 38,108.17 × 15,515.85
  4. Step 4: Simplify right side
    27,616.31x = 591,280,649.49
  5. Step 5: Solve for x
    x = 591,280,649.49/27,616.31
  6. Step 6: Final answer
    x = 21,410.56

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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.