Home / 27,734-38,273.20-15,158.80

Finding the Fourth Proportional to 27,734, 38,273.20 and 15,158.80

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Solution

The fourth proportional to 27,734, 38,273.20 and 15,158.80 is: 20,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,734 : 38,273.20 = 15,158.80 : x
  2. Step 2: Convert to fraction form
    27,734/38,273.20 = 15,158.80/x
  3. Step 3: Cross multiply
    27,734x = 38,273.20 × 15,158.80
  4. Step 4: Simplify right side
    27,734x = 580,175,784.16
  5. Step 5: Solve for x
    x = 580,175,784.16/27,734
  6. Step 6: Final answer
    x = 20,919.30

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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.