Home / 48,288.20-72,432.30-13,231.40

Finding the Fourth Proportional to 48,288.20, 72,432.30 and 13,231.40

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Solution

The fourth proportional to 48,288.20, 72,432.30 and 13,231.40 is: 19,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,288.20 : 72,432.30 = 13,231.40 : x
  2. Step 2: Convert to fraction form
    48,288.20/72,432.30 = 13,231.40/x
  3. Step 3: Cross multiply
    48,288.20x = 72,432.30 × 13,231.40
  4. Step 4: Simplify right side
    48,288.20x = 958,380,734.22
  5. Step 5: Solve for x
    x = 958,380,734.22/48,288.20
  6. Step 6: Final answer
    x = 19,847.10

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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.