Home / 27,615.10-38,110.90-15,516.98

Finding the Fourth Proportional to 27,615.10, 38,110.90 and 15,516.98

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Solution

The fourth proportional to 27,615.10, 38,110.90 and 15,516.98 is: 21,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,615.10 : 38,110.90 = 15,516.98 : x
  2. Step 2: Convert to fraction form
    27,615.10/38,110.90 = 15,516.98/x
  3. Step 3: Cross multiply
    27,615.10x = 38,110.90 × 15,516.98
  4. Step 4: Simplify right side
    27,615.10x = 591,366,073.08
  5. Step 5: Solve for x
    x = 591,366,073.08/27,615.10
  6. Step 6: Final answer
    x = 21,414.59

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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.