Home / 38,211.20-57,268.20-18,447.20

Finding the Fourth Proportional to 38,211.20, 57,268.20 and 18,447.20

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Solution

The fourth proportional to 38,211.20, 57,268.20 and 18,447.20 is: 27,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,211.20 : 57,268.20 = 18,447.20 : x
  2. Step 2: Convert to fraction form
    38,211.20/57,268.20 = 18,447.20/x
  3. Step 3: Cross multiply
    38,211.20x = 57,268.20 × 18,447.20
  4. Step 4: Simplify right side
    38,211.20x = 1,056,437,939.04
  5. Step 5: Solve for x
    x = 1,056,437,939.04/38,211.20
  6. Step 6: Final answer
    x = 27,647.34

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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.