Home / 28,209.14-42,306.75-11,573.90

Finding the Fourth Proportional to 28,209.14, 42,306.75 and 11,573.90

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Solution

The fourth proportional to 28,209.14, 42,306.75 and 11,573.90 is: 17,357.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.14 : 42,306.75 = 11,573.90 : x
  2. Step 2: Convert to fraction form
    28,209.14/42,306.75 = 11,573.90/x
  3. Step 3: Cross multiply
    28,209.14x = 42,306.75 × 11,573.90
  4. Step 4: Simplify right side
    28,209.14x = 489,654,093.83
  5. Step 5: Solve for x
    x = 489,654,093.83/28,209.14
  6. Step 6: Final answer
    x = 17,357.99

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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.