Home / 15,404.20-21,327.78-14,626.60

Finding the Fourth Proportional to 15,404.20, 21,327.78 and 14,626.60

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Solution

The fourth proportional to 15,404.20, 21,327.78 and 14,626.60 is: 20,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.20 : 21,327.78 = 14,626.60 : x
  2. Step 2: Convert to fraction form
    15,404.20/21,327.78 = 14,626.60/x
  3. Step 3: Cross multiply
    15,404.20x = 21,327.78 × 14,626.60
  4. Step 4: Simplify right side
    15,404.20x = 311,952,906.95
  5. Step 5: Solve for x
    x = 311,952,906.95/15,404.20
  6. Step 6: Final answer
    x = 20,251.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.