Home / 20,724.42-28,591.14-14,440.44

Finding the Fourth Proportional to 20,724.42, 28,591.14 and 14,440.44

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Solution

The fourth proportional to 20,724.42, 28,591.14 and 14,440.44 is: 19,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.42 : 28,591.14 = 14,440.44 : x
  2. Step 2: Convert to fraction form
    20,724.42/28,591.14 = 14,440.44/x
  3. Step 3: Cross multiply
    20,724.42x = 28,591.14 × 14,440.44
  4. Step 4: Simplify right side
    20,724.42x = 412,868,641.70
  5. Step 5: Solve for x
    x = 412,868,641.70/20,724.42
  6. Step 6: Final answer
    x = 19,921.84

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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.