Home / 25,012.92-34,516.38-13,680.15

Finding the Fourth Proportional to 25,012.92, 34,516.38 and 13,680.15

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Solution

The fourth proportional to 25,012.92, 34,516.38 and 13,680.15 is: 18,877.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,012.92 : 34,516.38 = 13,680.15 : x
  2. Step 2: Convert to fraction form
    25,012.92/34,516.38 = 13,680.15/x
  3. Step 3: Cross multiply
    25,012.92x = 34,516.38 × 13,680.15
  4. Step 4: Simplify right side
    25,012.92x = 472,189,255.86
  5. Step 5: Solve for x
    x = 472,189,255.86/25,012.92
  6. Step 6: Final answer
    x = 18,877.81

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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.