Home / 28,382.18-42,573.26-11,723.91

Finding the Fourth Proportional to 28,382.18, 42,573.26 and 11,723.91

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Solution

The fourth proportional to 28,382.18, 42,573.26 and 11,723.91 is: 17,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.18 : 42,573.26 = 11,723.91 : x
  2. Step 2: Convert to fraction form
    28,382.18/42,573.26 = 11,723.91/x
  3. Step 3: Cross multiply
    28,382.18x = 42,573.26 × 11,723.91
  4. Step 4: Simplify right side
    28,382.18x = 499,124,938.31
  5. Step 5: Solve for x
    x = 499,124,938.31/28,382.18
  6. Step 6: Final answer
    x = 17,585.86

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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.