Home / 20,176.26-30,264.40-5,385.24

Finding the Fourth Proportional to 20,176.26, 30,264.40 and 5,385.24

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Solution

The fourth proportional to 20,176.26, 30,264.40 and 5,385.24 is: 8,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.26 : 30,264.40 = 5,385.24 : x
  2. Step 2: Convert to fraction form
    20,176.26/30,264.40 = 5,385.24/x
  3. Step 3: Cross multiply
    20,176.26x = 30,264.40 × 5,385.24
  4. Step 4: Simplify right side
    20,176.26x = 162,981,057.46
  5. Step 5: Solve for x
    x = 162,981,057.46/20,176.26
  6. Step 6: Final answer
    x = 8,077.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.