Home / 20,295.08-28,006.17-11,340.83

Finding the Fourth Proportional to 20,295.08, 28,006.17 and 11,340.83

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Solution

The fourth proportional to 20,295.08, 28,006.17 and 11,340.83 is: 15,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.08 : 28,006.17 = 11,340.83 : x
  2. Step 2: Convert to fraction form
    20,295.08/28,006.17 = 11,340.83/x
  3. Step 3: Cross multiply
    20,295.08x = 28,006.17 × 11,340.83
  4. Step 4: Simplify right side
    20,295.08x = 317,613,212.92
  5. Step 5: Solve for x
    x = 317,613,212.92/20,295.08
  6. Step 6: Final answer
    x = 15,649.76

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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.