Home / 20,711.68-28,583.13-11,759.02

Finding the Fourth Proportional to 20,711.68, 28,583.13 and 11,759.02

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Solution

The fourth proportional to 20,711.68, 28,583.13 and 11,759.02 is: 16,228.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.68 : 28,583.13 = 11,759.02 : x
  2. Step 2: Convert to fraction form
    20,711.68/28,583.13 = 11,759.02/x
  3. Step 3: Cross multiply
    20,711.68x = 28,583.13 × 11,759.02
  4. Step 4: Simplify right side
    20,711.68x = 336,109,597.33
  5. Step 5: Solve for x
    x = 336,109,597.33/20,711.68
  6. Step 6: Final answer
    x = 16,228.02

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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.