Home / 45,320.81-67,982.56-21,630.85

Finding the Fourth Proportional to 45,320.81, 67,982.56 and 21,630.85

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Solution

The fourth proportional to 45,320.81, 67,982.56 and 21,630.85 is: 32,446.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.81 : 67,982.56 = 21,630.85 : x
  2. Step 2: Convert to fraction form
    45,320.81/67,982.56 = 21,630.85/x
  3. Step 3: Cross multiply
    45,320.81x = 67,982.56 × 21,630.85
  4. Step 4: Simplify right side
    45,320.81x = 1,470,520,557.98
  5. Step 5: Solve for x
    x = 1,470,520,557.98/45,320.81
  6. Step 6: Final answer
    x = 32,446.92

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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.