Home / 20,983.26-31,475.02-5,401.02

Finding the Fourth Proportional to 20,983.26, 31,475.02 and 5,401.02

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Solution

The fourth proportional to 20,983.26, 31,475.02 and 5,401.02 is: 8,101.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,983.26 : 31,475.02 = 5,401.02 : x
  2. Step 2: Convert to fraction form
    20,983.26/31,475.02 = 5,401.02/x
  3. Step 3: Cross multiply
    20,983.26x = 31,475.02 × 5,401.02
  4. Step 4: Simplify right side
    20,983.26x = 169,997,212.52
  5. Step 5: Solve for x
    x = 169,997,212.52/20,983.26
  6. Step 6: Final answer
    x = 8,101.56

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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.