Home / 20,496.42-28,284.50-11,543.74

Finding the Fourth Proportional to 20,496.42, 28,284.50 and 11,543.74

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Solution

The fourth proportional to 20,496.42, 28,284.50 and 11,543.74 is: 15,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.42 : 28,284.50 = 11,543.74 : x
  2. Step 2: Convert to fraction form
    20,496.42/28,284.50 = 11,543.74/x
  3. Step 3: Cross multiply
    20,496.42x = 28,284.50 × 11,543.74
  4. Step 4: Simplify right side
    20,496.42x = 326,508,872.18
  5. Step 5: Solve for x
    x = 326,508,872.18/20,496.42
  6. Step 6: Final answer
    x = 15,930.04

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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.