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Finding the Fourth Proportional to 22,602.96, 31,193.12 and 12,913.27

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Solution

The fourth proportional to 22,602.96, 31,193.12 and 12,913.27 is: 17,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,602.96 : 31,193.12 = 12,913.27 : x
  2. Step 2: Convert to fraction form
    22,602.96/31,193.12 = 12,913.27/x
  3. Step 3: Cross multiply
    22,602.96x = 31,193.12 × 12,913.27
  4. Step 4: Simplify right side
    22,602.96x = 402,805,180.70
  5. Step 5: Solve for x
    x = 402,805,180.70/22,602.96
  6. Step 6: Final answer
    x = 17,820.90

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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.