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Finding the Fourth Proportional to 26,901.20, 40,366.20 and 11,320.40

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Solution

The fourth proportional to 26,901.20, 40,366.20 and 11,320.40 is: 16,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,901.20 : 40,366.20 = 11,320.40 : x
  2. Step 2: Convert to fraction form
    26,901.20/40,366.20 = 11,320.40/x
  3. Step 3: Cross multiply
    26,901.20x = 40,366.20 × 11,320.40
  4. Step 4: Simplify right side
    26,901.20x = 456,961,530.48
  5. Step 5: Solve for x
    x = 456,961,530.48/26,901.20
  6. Step 6: Final answer
    x = 16,986.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.