Home / 20,292.59-28,003.92-11,340.47

Finding the Fourth Proportional to 20,292.59, 28,003.92 and 11,340.47

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Solution

The fourth proportional to 20,292.59, 28,003.92 and 11,340.47 is: 15,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.59 : 28,003.92 = 11,340.47 : x
  2. Step 2: Convert to fraction form
    20,292.59/28,003.92 = 11,340.47/x
  3. Step 3: Cross multiply
    20,292.59x = 28,003.92 × 11,340.47
  4. Step 4: Simplify right side
    20,292.59x = 317,577,642.13
  5. Step 5: Solve for x
    x = 317,577,642.13/20,292.59
  6. Step 6: Final answer
    x = 15,649.93

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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.