Home / 28,972.62-39,988.44-17,645.85

Finding the Fourth Proportional to 28,972.62, 39,988.44 and 17,645.85

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Solution

The fourth proportional to 28,972.62, 39,988.44 and 17,645.85 is: 24,355.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.62 : 39,988.44 = 17,645.85 : x
  2. Step 2: Convert to fraction form
    28,972.62/39,988.44 = 17,645.85/x
  3. Step 3: Cross multiply
    28,972.62x = 39,988.44 × 17,645.85
  4. Step 4: Simplify right side
    28,972.62x = 705,630,013.97
  5. Step 5: Solve for x
    x = 705,630,013.97/28,972.62
  6. Step 6: Final answer
    x = 24,355.06

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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.