Home / 15,999.20-24,027.60-15,480.80

Finding the Fourth Proportional to 15,999.20, 24,027.60 and 15,480.80

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Solution

The fourth proportional to 15,999.20, 24,027.60 and 15,480.80 is: 23,249.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.20 : 24,027.60 = 15,480.80 : x
  2. Step 2: Convert to fraction form
    15,999.20/24,027.60 = 15,480.80/x
  3. Step 3: Cross multiply
    15,999.20x = 24,027.60 × 15,480.80
  4. Step 4: Simplify right side
    15,999.20x = 371,966,470.08
  5. Step 5: Solve for x
    x = 371,966,470.08/15,999.20
  6. Step 6: Final answer
    x = 23,249.07

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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.