Home / 28,382.08-42,581.36-11,739.04

Finding the Fourth Proportional to 28,382.08, 42,581.36 and 11,739.04

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Solution

The fourth proportional to 28,382.08, 42,581.36 and 11,739.04 is: 17,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.08 : 42,581.36 = 11,739.04 : x
  2. Step 2: Convert to fraction form
    28,382.08/42,581.36 = 11,739.04/x
  3. Step 3: Cross multiply
    28,382.08x = 42,581.36 × 11,739.04
  4. Step 4: Simplify right side
    28,382.08x = 499,864,288.29
  5. Step 5: Solve for x
    x = 499,864,288.29/28,382.08
  6. Step 6: Final answer
    x = 17,611.97

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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.