Home / 20,295.23-28,006.29-11,340.95

Finding the Fourth Proportional to 20,295.23, 28,006.29 and 11,340.95

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Solution

The fourth proportional to 20,295.23, 28,006.29 and 11,340.95 is: 15,649.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.23 : 28,006.29 = 11,340.95 : x
  2. Step 2: Convert to fraction form
    20,295.23/28,006.29 = 11,340.95/x
  3. Step 3: Cross multiply
    20,295.23x = 28,006.29 × 11,340.95
  4. Step 4: Simplify right side
    20,295.23x = 317,617,794.54
  5. Step 5: Solve for x
    x = 317,617,794.54/20,295.23
  6. Step 6: Final answer
    x = 15,649.88

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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.