Home / 28,781.25-43,169.90-17,689.65

Finding the Fourth Proportional to 28,781.25, 43,169.90 and 17,689.65

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Solution

The fourth proportional to 28,781.25, 43,169.90 and 17,689.65 is: 26,533.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.25 : 43,169.90 = 17,689.65 : x
  2. Step 2: Convert to fraction form
    28,781.25/43,169.90 = 17,689.65/x
  3. Step 3: Cross multiply
    28,781.25x = 43,169.90 × 17,689.65
  4. Step 4: Simplify right side
    28,781.25x = 763,660,333.09
  5. Step 5: Solve for x
    x = 763,660,333.09/28,781.25
  6. Step 6: Final answer
    x = 26,533.26

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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.