Home / 21,913.87-32,876.33-6,118.89

Finding the Fourth Proportional to 21,913.87, 32,876.33 and 6,118.89

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Solution

The fourth proportional to 21,913.87, 32,876.33 and 6,118.89 is: 9,179.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.87 : 32,876.33 = 6,118.89 : x
  2. Step 2: Convert to fraction form
    21,913.87/32,876.33 = 6,118.89/x
  3. Step 3: Cross multiply
    21,913.87x = 32,876.33 × 6,118.89
  4. Step 4: Simplify right side
    21,913.87x = 201,166,646.87
  5. Step 5: Solve for x
    x = 201,166,646.87/21,913.87
  6. Step 6: Final answer
    x = 9,179.88

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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.