Home / 28,764.92-43,139.46-18,219.12

Finding the Fourth Proportional to 28,764.92, 43,139.46 and 18,219.12

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Solution

The fourth proportional to 28,764.92, 43,139.46 and 18,219.12 is: 27,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764.92 : 43,139.46 = 18,219.12 : x
  2. Step 2: Convert to fraction form
    28,764.92/43,139.46 = 18,219.12/x
  3. Step 3: Cross multiply
    28,764.92x = 43,139.46 × 18,219.12
  4. Step 4: Simplify right side
    28,764.92x = 785,962,998.48
  5. Step 5: Solve for x
    x = 785,962,998.48/28,764.92
  6. Step 6: Final answer
    x = 27,323.66

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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.