Home / 31,995.20-48,014.40-20,874.80

Finding the Fourth Proportional to 31,995.20, 48,014.40 and 20,874.80

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Solution

The fourth proportional to 31,995.20, 48,014.40 and 20,874.80 is: 31,326.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,995.20 : 48,014.40 = 20,874.80 : x
  2. Step 2: Convert to fraction form
    31,995.20/48,014.40 = 20,874.80/x
  3. Step 3: Cross multiply
    31,995.20x = 48,014.40 × 20,874.80
  4. Step 4: Simplify right side
    31,995.20x = 1,002,290,997.12
  5. Step 5: Solve for x
    x = 1,002,290,997.12/31,995.20
  6. Step 6: Final answer
    x = 31,326.29

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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.