Home / 48,247.20-72,383.04-20,162.40

Finding the Fourth Proportional to 48,247.20, 72,383.04 and 20,162.40

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Solution

The fourth proportional to 48,247.20, 72,383.04 and 20,162.40 is: 30,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,247.20 : 72,383.04 = 20,162.40 : x
  2. Step 2: Convert to fraction form
    48,247.20/72,383.04 = 20,162.40/x
  3. Step 3: Cross multiply
    48,247.20x = 72,383.04 × 20,162.40
  4. Step 4: Simplify right side
    48,247.20x = 1,459,415,805.70
  5. Step 5: Solve for x
    x = 1,459,415,805.70/48,247.20
  6. Step 6: Final answer
    x = 30,248.72

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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.