Home / 15,520.20-23,281.20-4,427.70

Finding the Fourth Proportional to 15,520.20, 23,281.20 and 4,427.70

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Solution

The fourth proportional to 15,520.20, 23,281.20 and 4,427.70 is: 6,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520.20 : 23,281.20 = 4,427.70 : x
  2. Step 2: Convert to fraction form
    15,520.20/23,281.20 = 4,427.70/x
  3. Step 3: Cross multiply
    15,520.20x = 23,281.20 × 4,427.70
  4. Step 4: Simplify right side
    15,520.20x = 103,082,169.24
  5. Step 5: Solve for x
    x = 103,082,169.24/15,520.20
  6. Step 6: Final answer
    x = 6,641.81

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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.