Home / 48,353.20-72,541.40-20,257.68

Finding the Fourth Proportional to 48,353.20, 72,541.40 and 20,257.68

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Solution

The fourth proportional to 48,353.20, 72,541.40 and 20,257.68 is: 30,391.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,353.20 : 72,541.40 = 20,257.68 : x
  2. Step 2: Convert to fraction form
    48,353.20/72,541.40 = 20,257.68/x
  3. Step 3: Cross multiply
    48,353.20x = 72,541.40 × 20,257.68
  4. Step 4: Simplify right side
    48,353.20x = 1,469,520,467.95
  5. Step 5: Solve for x
    x = 1,469,520,467.95/48,353.20
  6. Step 6: Final answer
    x = 30,391.38

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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.