Home / 41,520.72-62,271.36-20,439.12

Finding the Fourth Proportional to 41,520.72, 62,271.36 and 20,439.12

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Solution

The fourth proportional to 41,520.72, 62,271.36 and 20,439.12 is: 30,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,520.72 : 62,271.36 = 20,439.12 : x
  2. Step 2: Convert to fraction form
    41,520.72/62,271.36 = 20,439.12/x
  3. Step 3: Cross multiply
    41,520.72x = 62,271.36 × 20,439.12
  4. Step 4: Simplify right side
    41,520.72x = 1,272,771,799.60
  5. Step 5: Solve for x
    x = 1,272,771,799.60/41,520.72
  6. Step 6: Final answer
    x = 30,653.90

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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.