Home / 36,139.92-54,210.84-12,761.04

Finding the Fourth Proportional to 36,139.92, 54,210.84 and 12,761.04

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Solution

The fourth proportional to 36,139.92, 54,210.84 and 12,761.04 is: 19,141.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,139.92 : 54,210.84 = 12,761.04 : x
  2. Step 2: Convert to fraction form
    36,139.92/54,210.84 = 12,761.04/x
  3. Step 3: Cross multiply
    36,139.92x = 54,210.84 × 12,761.04
  4. Step 4: Simplify right side
    36,139.92x = 691,786,697.67
  5. Step 5: Solve for x
    x = 691,786,697.67/36,139.92
  6. Step 6: Final answer
    x = 19,141.90

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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.