Home / 20,325.35-30,493.52-8,475.20

Finding the Fourth Proportional to 20,325.35, 30,493.52 and 8,475.20

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Solution

The fourth proportional to 20,325.35, 30,493.52 and 8,475.20 is: 12,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.35 : 30,493.52 = 8,475.20 : x
  2. Step 2: Convert to fraction form
    20,325.35/30,493.52 = 8,475.20/x
  3. Step 3: Cross multiply
    20,325.35x = 30,493.52 × 8,475.20
  4. Step 4: Simplify right side
    20,325.35x = 258,438,778.13
  5. Step 5: Solve for x
    x = 258,438,778.13/20,325.35
  6. Step 6: Final answer
    x = 12,715.09

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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.