Home / 28,782.25-43,171.39-17,690.65

Finding the Fourth Proportional to 28,782.25, 43,171.39 and 17,690.65

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Solution

The fourth proportional to 28,782.25, 43,171.39 and 17,690.65 is: 26,534.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.25 : 43,171.39 = 17,690.65 : x
  2. Step 2: Convert to fraction form
    28,782.25/43,171.39 = 17,690.65/x
  3. Step 3: Cross multiply
    28,782.25x = 43,171.39 × 17,690.65
  4. Step 4: Simplify right side
    28,782.25x = 763,729,950.50
  5. Step 5: Solve for x
    x = 763,729,950.50/28,782.25
  6. Step 6: Final answer
    x = 26,534.75

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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.