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Finding the Fourth Proportional to 26,951.20, 40,426.80 and 15,287.20

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Solution

The fourth proportional to 26,951.20, 40,426.80 and 15,287.20 is: 22,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,951.20 : 40,426.80 = 15,287.20 : x
  2. Step 2: Convert to fraction form
    26,951.20/40,426.80 = 15,287.20/x
  3. Step 3: Cross multiply
    26,951.20x = 40,426.80 × 15,287.20
  4. Step 4: Simplify right side
    26,951.20x = 618,012,576.96
  5. Step 5: Solve for x
    x = 618,012,576.96/26,951.20
  6. Step 6: Final answer
    x = 22,930.80

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1.5x scale

Why These Related Problems?

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