Home / 21,788.85-32,678.97-5,989.80

Finding the Fourth Proportional to 21,788.85, 32,678.97 and 5,989.80

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Solution

The fourth proportional to 21,788.85, 32,678.97 and 5,989.80 is: 8,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,788.85 : 32,678.97 = 5,989.80 : x
  2. Step 2: Convert to fraction form
    21,788.85/32,678.97 = 5,989.80/x
  3. Step 3: Cross multiply
    21,788.85x = 32,678.97 × 5,989.80
  4. Step 4: Simplify right side
    21,788.85x = 195,740,587.45
  5. Step 5: Solve for x
    x = 195,740,587.45/21,788.85
  6. Step 6: Final answer
    x = 8,983.52

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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.