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Finding the Fourth Proportional to 18,151.10, 25,359.70 and 18,151.10

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Solution

The fourth proportional to 18,151.10, 25,359.70 and 18,151.10 is: 25,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.10 : 25,359.70 = 18,151.10 : x
  2. Step 2: Convert to fraction form
    18,151.10/25,359.70 = 18,151.10/x
  3. Step 3: Cross multiply
    18,151.10x = 25,359.70 × 18,151.10
  4. Step 4: Simplify right side
    18,151.10x = 460,306,450.67
  5. Step 5: Solve for x
    x = 460,306,450.67/18,151.10
  6. Step 6: Final answer
    x = 25,359.70

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.