Home / 20,359.39-30,493.96-15,644.70

Finding the Fourth Proportional to 20,359.39, 30,493.96 and 15,644.70

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Solution

The fourth proportional to 20,359.39, 30,493.96 and 15,644.70 is: 23,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.39 : 30,493.96 = 15,644.70 : x
  2. Step 2: Convert to fraction form
    20,359.39/30,493.96 = 15,644.70/x
  3. Step 3: Cross multiply
    20,359.39x = 30,493.96 × 15,644.70
  4. Step 4: Simplify right side
    20,359.39x = 477,068,856.01
  5. Step 5: Solve for x
    x = 477,068,856.01/20,359.39
  6. Step 6: Final answer
    x = 23,432.37

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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.