Home / 21,578.54-32,343.10-9,079.83

Finding the Fourth Proportional to 21,578.54, 32,343.10 and 9,079.83

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Solution

The fourth proportional to 21,578.54, 32,343.10 and 9,079.83 is: 13,609.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.54 : 32,343.10 = 9,079.83 : x
  2. Step 2: Convert to fraction form
    21,578.54/32,343.10 = 9,079.83/x
  3. Step 3: Cross multiply
    21,578.54x = 32,343.10 × 9,079.83
  4. Step 4: Simplify right side
    21,578.54x = 293,669,826.97
  5. Step 5: Solve for x
    x = 293,669,826.97/21,578.54
  6. Step 6: Final answer
    x = 13,609.35

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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.