Home / 36,891.78-55,304.79-13,512.75

Finding the Fourth Proportional to 36,891.78, 55,304.79 and 13,512.75

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Solution

The fourth proportional to 36,891.78, 55,304.79 and 13,512.75 is: 20,257.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,891.78 : 55,304.79 = 13,512.75 : x
  2. Step 2: Convert to fraction form
    36,891.78/55,304.79 = 13,512.75/x
  3. Step 3: Cross multiply
    36,891.78x = 55,304.79 × 13,512.75
  4. Step 4: Simplify right side
    36,891.78x = 747,319,801.07
  5. Step 5: Solve for x
    x = 747,319,801.07/36,891.78
  6. Step 6: Final answer
    x = 20,257.08

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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.