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Finding the Fourth Proportional to 22,557.84, 31,122.65 and 13,124.58

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Solution

The fourth proportional to 22,557.84, 31,122.65 and 13,124.58 is: 18,107.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.84 : 31,122.65 = 13,124.58 : x
  2. Step 2: Convert to fraction form
    22,557.84/31,122.65 = 13,124.58/x
  3. Step 3: Cross multiply
    22,557.84x = 31,122.65 × 13,124.58
  4. Step 4: Simplify right side
    22,557.84x = 408,471,554.12
  5. Step 5: Solve for x
    x = 408,471,554.12/22,557.84
  6. Step 6: Final answer
    x = 18,107.75

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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.