Home / 28,623.22-39,500.33-15,876.65

Finding the Fourth Proportional to 28,623.22, 39,500.33 and 15,876.65

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Solution

The fourth proportional to 28,623.22, 39,500.33 and 15,876.65 is: 21,909.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.22 : 39,500.33 = 15,876.65 : x
  2. Step 2: Convert to fraction form
    28,623.22/39,500.33 = 15,876.65/x
  3. Step 3: Cross multiply
    28,623.22x = 39,500.33 × 15,876.65
  4. Step 4: Simplify right side
    28,623.22x = 627,132,933.66
  5. Step 5: Solve for x
    x = 627,132,933.66/28,623.22
  6. Step 6: Final answer
    x = 21,909.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.