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Finding the Fourth Proportional to 27,171.45, 40,757.18 and 15,507.45

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Solution

The fourth proportional to 27,171.45, 40,757.18 and 15,507.45 is: 23,261.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,171.45 : 40,757.18 = 15,507.45 : x
  2. Step 2: Convert to fraction form
    27,171.45/40,757.18 = 15,507.45/x
  3. Step 3: Cross multiply
    27,171.45x = 40,757.18 × 15,507.45
  4. Step 4: Simplify right side
    27,171.45x = 632,039,853.45
  5. Step 5: Solve for x
    x = 632,039,853.45/27,171.45
  6. Step 6: Final answer
    x = 23,261.18

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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.