Home / 31,812.60-47,718.90-29,998.20

Finding the Fourth Proportional to 31,812.60, 47,718.90 and 29,998.20

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Solution

The fourth proportional to 31,812.60, 47,718.90 and 29,998.20 is: 44,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,812.60 : 47,718.90 = 29,998.20 : x
  2. Step 2: Convert to fraction form
    31,812.60/47,718.90 = 29,998.20/x
  3. Step 3: Cross multiply
    31,812.60x = 47,718.90 × 29,998.20
  4. Step 4: Simplify right side
    31,812.60x = 1,431,481,105.98
  5. Step 5: Solve for x
    x = 1,431,481,105.98/31,812.60
  6. Step 6: Final answer
    x = 44,997.30

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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.