Home / 42,480.92-63,721.37-20,226.82

Finding the Fourth Proportional to 42,480.92, 63,721.37 and 20,226.82

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Solution

The fourth proportional to 42,480.92, 63,721.37 and 20,226.82 is: 30,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,480.92 : 63,721.37 = 20,226.82 : x
  2. Step 2: Convert to fraction form
    42,480.92/63,721.37 = 20,226.82/x
  3. Step 3: Cross multiply
    42,480.92x = 63,721.37 × 20,226.82
  4. Step 4: Simplify right side
    42,480.92x = 1,288,880,944.27
  5. Step 5: Solve for x
    x = 1,288,880,944.27/42,480.92
  6. Step 6: Final answer
    x = 30,340.23

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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.