Home / 22,862.20-31,551.30-12,791.80

Finding the Fourth Proportional to 22,862.20, 31,551.30 and 12,791.80

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Solution

The fourth proportional to 22,862.20, 31,551.30 and 12,791.80 is: 17,653.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,862.20 : 31,551.30 = 12,791.80 : x
  2. Step 2: Convert to fraction form
    22,862.20/31,551.30 = 12,791.80/x
  3. Step 3: Cross multiply
    22,862.20x = 31,551.30 × 12,791.80
  4. Step 4: Simplify right side
    22,862.20x = 403,597,919.34
  5. Step 5: Solve for x
    x = 403,597,919.34/22,862.20
  6. Step 6: Final answer
    x = 17,653.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.