Home / 40,288.20-60,432.30-25,319.40

Finding the Fourth Proportional to 40,288.20, 60,432.30 and 25,319.40

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Solution

The fourth proportional to 40,288.20, 60,432.30 and 25,319.40 is: 37,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,288.20 : 60,432.30 = 25,319.40 : x
  2. Step 2: Convert to fraction form
    40,288.20/60,432.30 = 25,319.40/x
  3. Step 3: Cross multiply
    40,288.20x = 60,432.30 × 25,319.40
  4. Step 4: Simplify right side
    40,288.20x = 1,530,109,576.62
  5. Step 5: Solve for x
    x = 1,530,109,576.62/40,288.20
  6. Step 6: Final answer
    x = 37,979.10

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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.