Home / 20,110.62-27,753.40-12,151.31

Finding the Fourth Proportional to 20,110.62, 27,753.40 and 12,151.31

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Solution

The fourth proportional to 20,110.62, 27,753.40 and 12,151.31 is: 16,769.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.62 : 27,753.40 = 12,151.31 : x
  2. Step 2: Convert to fraction form
    20,110.62/27,753.40 = 12,151.31/x
  3. Step 3: Cross multiply
    20,110.62x = 27,753.40 × 12,151.31
  4. Step 4: Simplify right side
    20,110.62x = 337,240,028.19
  5. Step 5: Solve for x
    x = 337,240,028.19/20,110.62
  6. Step 6: Final answer
    x = 16,769.25

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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.