Home / 28,823.80-43,231.20-9,107.14

Finding the Fourth Proportional to 28,823.80, 43,231.20 and 9,107.14

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Solution

The fourth proportional to 28,823.80, 43,231.20 and 9,107.14 is: 13,659.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,823.80 : 43,231.20 = 9,107.14 : x
  2. Step 2: Convert to fraction form
    28,823.80/43,231.20 = 9,107.14/x
  3. Step 3: Cross multiply
    28,823.80x = 43,231.20 × 9,107.14
  4. Step 4: Simplify right side
    28,823.80x = 393,712,590.77
  5. Step 5: Solve for x
    x = 393,712,590.77/28,823.80
  6. Step 6: Final answer
    x = 13,659.29

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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.