Home / 20,544.42-28,351.18-11,591.70

Finding the Fourth Proportional to 20,544.42, 28,351.18 and 11,591.70

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Solution

The fourth proportional to 20,544.42, 28,351.18 and 11,591.70 is: 15,996.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.42 : 28,351.18 = 11,591.70 : x
  2. Step 2: Convert to fraction form
    20,544.42/28,351.18 = 11,591.70/x
  3. Step 3: Cross multiply
    20,544.42x = 28,351.18 × 11,591.70
  4. Step 4: Simplify right side
    20,544.42x = 328,638,373.21
  5. Step 5: Solve for x
    x = 328,638,373.21/20,544.42
  6. Step 6: Final answer
    x = 15,996.48

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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.