Home / 20,948.02-31,418.28-5,956.13

Finding the Fourth Proportional to 20,948.02, 31,418.28 and 5,956.13

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Solution

The fourth proportional to 20,948.02, 31,418.28 and 5,956.13 is: 8,933.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,948.02 : 31,418.28 = 5,956.13 : x
  2. Step 2: Convert to fraction form
    20,948.02/31,418.28 = 5,956.13/x
  3. Step 3: Cross multiply
    20,948.02x = 31,418.28 × 5,956.13
  4. Step 4: Simplify right side
    20,948.02x = 187,131,438.60
  5. Step 5: Solve for x
    x = 187,131,438.60/20,948.02
  6. Step 6: Final answer
    x = 8,933.13

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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.