Home / 36,268.20-54,402.30-20,687.40

Finding the Fourth Proportional to 36,268.20, 54,402.30 and 20,687.40

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Solution

The fourth proportional to 36,268.20, 54,402.30 and 20,687.40 is: 31,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,268.20 : 54,402.30 = 20,687.40 : x
  2. Step 2: Convert to fraction form
    36,268.20/54,402.30 = 20,687.40/x
  3. Step 3: Cross multiply
    36,268.20x = 54,402.30 × 20,687.40
  4. Step 4: Simplify right side
    36,268.20x = 1,125,442,141.02
  5. Step 5: Solve for x
    x = 1,125,442,141.02/36,268.20
  6. Step 6: Final answer
    x = 31,031.10

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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.