Home / 22,060.90-30,431.71-13,557.11

Finding the Fourth Proportional to 22,060.90, 30,431.71 and 13,557.11

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Solution

The fourth proportional to 22,060.90, 30,431.71 and 13,557.11 is: 18,701.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,060.90 : 30,431.71 = 13,557.11 : x
  2. Step 2: Convert to fraction form
    22,060.90/30,431.71 = 13,557.11/x
  3. Step 3: Cross multiply
    22,060.90x = 30,431.71 × 13,557.11
  4. Step 4: Simplify right side
    22,060.90x = 412,566,039.96
  5. Step 5: Solve for x
    x = 412,566,039.96/22,060.90
  6. Step 6: Final answer
    x = 18,701.23

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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.