Home / 28,870.25-43,306.64-9,150.26

Finding the Fourth Proportional to 28,870.25, 43,306.64 and 9,150.26

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Solution

The fourth proportional to 28,870.25, 43,306.64 and 9,150.26 is: 13,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.25 : 43,306.64 = 9,150.26 : x
  2. Step 2: Convert to fraction form
    28,870.25/43,306.64 = 9,150.26/x
  3. Step 3: Cross multiply
    28,870.25x = 43,306.64 × 9,150.26
  4. Step 4: Simplify right side
    28,870.25x = 396,267,015.73
  5. Step 5: Solve for x
    x = 396,267,015.73/28,870.25
  6. Step 6: Final answer
    x = 13,725.79

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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.