Home / 27,918.15-38,527.20-15,171.43

Finding the Fourth Proportional to 27,918.15, 38,527.20 and 15,171.43

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Solution

The fourth proportional to 27,918.15, 38,527.20 and 15,171.43 is: 20,936.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.15 : 38,527.20 = 15,171.43 : x
  2. Step 2: Convert to fraction form
    27,918.15/38,527.20 = 15,171.43/x
  3. Step 3: Cross multiply
    27,918.15x = 38,527.20 × 15,171.43
  4. Step 4: Simplify right side
    27,918.15x = 584,512,717.90
  5. Step 5: Solve for x
    x = 584,512,717.90/27,918.15
  6. Step 6: Final answer
    x = 20,936.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.