Home / 20,151.57-30,232.47-11,838.62

Finding the Fourth Proportional to 20,151.57, 30,232.47 and 11,838.62

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Solution

The fourth proportional to 20,151.57, 30,232.47 and 11,838.62 is: 17,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.57 : 30,232.47 = 11,838.62 : x
  2. Step 2: Convert to fraction form
    20,151.57/30,232.47 = 11,838.62/x
  3. Step 3: Cross multiply
    20,151.57x = 30,232.47 × 11,838.62
  4. Step 4: Simplify right side
    20,151.57x = 357,910,572.83
  5. Step 5: Solve for x
    x = 357,910,572.83/20,151.57
  6. Step 6: Final answer
    x = 17,760.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.