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Finding the Fourth Proportional to 27,043.81, 40,569.55 and 8,325.40

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Solution

The fourth proportional to 27,043.81, 40,569.55 and 8,325.40 is: 12,489.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,043.81 : 40,569.55 = 8,325.40 : x
  2. Step 2: Convert to fraction form
    27,043.81/40,569.55 = 8,325.40/x
  3. Step 3: Cross multiply
    27,043.81x = 40,569.55 × 8,325.40
  4. Step 4: Simplify right side
    27,043.81x = 337,757,731.57
  5. Step 5: Solve for x
    x = 337,757,731.57/27,043.81
  6. Step 6: Final answer
    x = 12,489.28

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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.