Home / 20,581.92-30,868.25-12,264.30

Finding the Fourth Proportional to 20,581.92, 30,868.25 and 12,264.30

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Solution

The fourth proportional to 20,581.92, 30,868.25 and 12,264.30 is: 18,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.92 : 30,868.25 = 12,264.30 : x
  2. Step 2: Convert to fraction form
    20,581.92/30,868.25 = 12,264.30/x
  3. Step 3: Cross multiply
    20,581.92x = 30,868.25 × 12,264.30
  4. Step 4: Simplify right side
    20,581.92x = 378,577,417.15
  5. Step 5: Solve for x
    x = 378,577,417.15/20,581.92
  6. Step 6: Final answer
    x = 18,393.69

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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.