Home / 20,164.70-30,247.05-14,591.90

Finding the Fourth Proportional to 20,164.70, 30,247.05 and 14,591.90

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Solution

The fourth proportional to 20,164.70, 30,247.05 and 14,591.90 is: 21,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.70 : 30,247.05 = 14,591.90 : x
  2. Step 2: Convert to fraction form
    20,164.70/30,247.05 = 14,591.90/x
  3. Step 3: Cross multiply
    20,164.70x = 30,247.05 × 14,591.90
  4. Step 4: Simplify right side
    20,164.70x = 441,361,928.90
  5. Step 5: Solve for x
    x = 441,361,928.90/20,164.70
  6. Step 6: Final answer
    x = 21,887.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.