Home / 20,232.20-30,332.10-8,535.80

Finding the Fourth Proportional to 20,232.20, 30,332.10 and 8,535.80

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Solution

The fourth proportional to 20,232.20, 30,332.10 and 8,535.80 is: 12,796.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.20 : 30,332.10 = 8,535.80 : x
  2. Step 2: Convert to fraction form
    20,232.20/30,332.10 = 8,535.80/x
  3. Step 3: Cross multiply
    20,232.20x = 30,332.10 × 8,535.80
  4. Step 4: Simplify right side
    20,232.20x = 258,908,739.18
  5. Step 5: Solve for x
    x = 258,908,739.18/20,232.20
  6. Step 6: Final answer
    x = 12,796.87

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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.