Home / 48,213.11-72,214.38-20,047.76

Finding the Fourth Proportional to 48,213.11, 72,214.38 and 20,047.76

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Solution

The fourth proportional to 48,213.11, 72,214.38 and 20,047.76 is: 30,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,213.11 : 72,214.38 = 20,047.76 : x
  2. Step 2: Convert to fraction form
    48,213.11/72,214.38 = 20,047.76/x
  3. Step 3: Cross multiply
    48,213.11x = 72,214.38 × 20,047.76
  4. Step 4: Simplify right side
    48,213.11x = 1,447,736,558.79
  5. Step 5: Solve for x
    x = 1,447,736,558.79/48,213.11
  6. Step 6: Final answer
    x = 30,027.86

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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.