Home / 57,288.20-85,932.30-15,739.40

Finding the Fourth Proportional to 57,288.20, 85,932.30 and 15,739.40

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Solution

The fourth proportional to 57,288.20, 85,932.30 and 15,739.40 is: 23,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,288.20 : 85,932.30 = 15,739.40 : x
  2. Step 2: Convert to fraction form
    57,288.20/85,932.30 = 15,739.40/x
  3. Step 3: Cross multiply
    57,288.20x = 85,932.30 × 15,739.40
  4. Step 4: Simplify right side
    57,288.20x = 1,352,522,842.62
  5. Step 5: Solve for x
    x = 1,352,522,842.62/57,288.20
  6. Step 6: Final answer
    x = 23,609.10

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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.