Home / 21,761.08-32,641.92-6,178.68

Finding the Fourth Proportional to 21,761.08, 32,641.92 and 6,178.68

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Solution

The fourth proportional to 21,761.08, 32,641.92 and 6,178.68 is: 9,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761.08 : 32,641.92 = 6,178.68 : x
  2. Step 2: Convert to fraction form
    21,761.08/32,641.92 = 6,178.68/x
  3. Step 3: Cross multiply
    21,761.08x = 32,641.92 × 6,178.68
  4. Step 4: Simplify right side
    21,761.08x = 201,683,978.27
  5. Step 5: Solve for x
    x = 201,683,978.27/21,761.08
  6. Step 6: Final answer
    x = 9,268.11

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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.