Home / 20,337.20-30,499.32-10,475.18

Finding the Fourth Proportional to 20,337.20, 30,499.32 and 10,475.18

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Solution

The fourth proportional to 20,337.20, 30,499.32 and 10,475.18 is: 15,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.20 : 30,499.32 = 10,475.18 : x
  2. Step 2: Convert to fraction form
    20,337.20/30,499.32 = 10,475.18/x
  3. Step 3: Cross multiply
    20,337.20x = 30,499.32 × 10,475.18
  4. Step 4: Simplify right side
    20,337.20x = 319,485,866.88
  5. Step 5: Solve for x
    x = 319,485,866.88/20,337.20
  6. Step 6: Final answer
    x = 15,709.43

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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.