Home / 13,349.97-20,024.69-3,990.02

Finding the Fourth Proportional to 13,349.97, 20,024.69 and 3,990.02

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Solution

The fourth proportional to 13,349.97, 20,024.69 and 3,990.02 is: 5,984.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.97 : 20,024.69 = 3,990.02 : x
  2. Step 2: Convert to fraction form
    13,349.97/20,024.69 = 3,990.02/x
  3. Step 3: Cross multiply
    13,349.97x = 20,024.69 × 3,990.02
  4. Step 4: Simplify right side
    13,349.97x = 79,898,793.52
  5. Step 5: Solve for x
    x = 79,898,793.52/13,349.97
  6. Step 6: Final answer
    x = 5,984.94

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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.