Home / 20,132.83-27,781.28-11,754.19

Finding the Fourth Proportional to 20,132.83, 27,781.28 and 11,754.19

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Solution

The fourth proportional to 20,132.83, 27,781.28 and 11,754.19 is: 16,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.83 : 27,781.28 = 11,754.19 : x
  2. Step 2: Convert to fraction form
    20,132.83/27,781.28 = 11,754.19/x
  3. Step 3: Cross multiply
    20,132.83x = 27,781.28 × 11,754.19
  4. Step 4: Simplify right side
    20,132.83x = 326,546,384.79
  5. Step 5: Solve for x
    x = 326,546,384.79/20,132.83
  6. Step 6: Final answer
    x = 16,219.60

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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.