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Finding the Fourth Proportional to 27,273.80, 40,886.70 and 18,480.20

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Solution

The fourth proportional to 27,273.80, 40,886.70 and 18,480.20 is: 27,704.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,273.80 : 40,886.70 = 18,480.20 : x
  2. Step 2: Convert to fraction form
    27,273.80/40,886.70 = 18,480.20/x
  3. Step 3: Cross multiply
    27,273.80x = 40,886.70 × 18,480.20
  4. Step 4: Simplify right side
    27,273.80x = 755,594,393.34
  5. Step 5: Solve for x
    x = 755,594,393.34/27,273.80
  6. Step 6: Final answer
    x = 27,704.04

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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.