Home / 23,172.20-31,977.80-12,562

Finding the Fourth Proportional to 23,172.20, 31,977.80 and 12,562

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Solution

The fourth proportional to 23,172.20, 31,977.80 and 12,562 is: 17,335.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,172.20 : 31,977.80 = 12,562 : x
  2. Step 2: Convert to fraction form
    23,172.20/31,977.80 = 12,562/x
  3. Step 3: Cross multiply
    23,172.20x = 31,977.80 × 12,562
  4. Step 4: Simplify right side
    23,172.20x = 401,705,123.60
  5. Step 5: Solve for x
    x = 401,705,123.60/23,172.20
  6. Step 6: Final answer
    x = 17,335.65

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Why These Related Problems?

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