Home / 20,007.60-30,122.22-17,680.92

Finding the Fourth Proportional to 20,007.60, 30,122.22 and 17,680.92

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Solution

The fourth proportional to 20,007.60, 30,122.22 and 17,680.92 is: 26,619.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.60 : 30,122.22 = 17,680.92 : x
  2. Step 2: Convert to fraction form
    20,007.60/30,122.22 = 17,680.92/x
  3. Step 3: Cross multiply
    20,007.60x = 30,122.22 × 17,680.92
  4. Step 4: Simplify right side
    20,007.60x = 532,588,562.04
  5. Step 5: Solve for x
    x = 532,588,562.04/20,007.60
  6. Step 6: Final answer
    x = 26,619.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.