Home / 22,622.30-31,218.80-13,192.68

Finding the Fourth Proportional to 22,622.30, 31,218.80 and 13,192.68

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Solution

The fourth proportional to 22,622.30, 31,218.80 and 13,192.68 is: 18,205.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,622.30 : 31,218.80 = 13,192.68 : x
  2. Step 2: Convert to fraction form
    22,622.30/31,218.80 = 13,192.68/x
  3. Step 3: Cross multiply
    22,622.30x = 31,218.80 × 13,192.68
  4. Step 4: Simplify right side
    22,622.30x = 411,859,689.49
  5. Step 5: Solve for x
    x = 411,859,689.49/22,622.30
  6. Step 6: Final answer
    x = 18,205.92

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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.