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Finding the Fourth Proportional to 22,283.55, 30,750.17 and 12,210.21

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Solution

The fourth proportional to 22,283.55, 30,750.17 and 12,210.21 is: 16,849.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,283.55 : 30,750.17 = 12,210.21 : x
  2. Step 2: Convert to fraction form
    22,283.55/30,750.17 = 12,210.21/x
  3. Step 3: Cross multiply
    22,283.55x = 30,750.17 × 12,210.21
  4. Step 4: Simplify right side
    22,283.55x = 375,465,972.18
  5. Step 5: Solve for x
    x = 375,465,972.18/22,283.55
  6. Step 6: Final answer
    x = 16,849.47

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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.