Home / 27,616.10-38,112.28-15,517.98

Finding the Fourth Proportional to 27,616.10, 38,112.28 and 15,517.98

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Solution

The fourth proportional to 27,616.10, 38,112.28 and 15,517.98 is: 21,415.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,616.10 : 38,112.28 = 15,517.98 : x
  2. Step 2: Convert to fraction form
    27,616.10/38,112.28 = 15,517.98/x
  3. Step 3: Cross multiply
    27,616.10x = 38,112.28 × 15,517.98
  4. Step 4: Simplify right side
    27,616.10x = 591,425,598.79
  5. Step 5: Solve for x
    x = 591,425,598.79/27,616.10
  6. Step 6: Final answer
    x = 21,415.97

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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.