Home / 21,633.10-32,434.64-8,486.80

Finding the Fourth Proportional to 21,633.10, 32,434.64 and 8,486.80

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Solution

The fourth proportional to 21,633.10, 32,434.64 and 8,486.80 is: 12,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,633.10 : 32,434.64 = 8,486.80 : x
  2. Step 2: Convert to fraction form
    21,633.10/32,434.64 = 8,486.80/x
  3. Step 3: Cross multiply
    21,633.10x = 32,434.64 × 8,486.80
  4. Step 4: Simplify right side
    21,633.10x = 275,266,302.75
  5. Step 5: Solve for x
    x = 275,266,302.75/21,633.10
  6. Step 6: Final answer
    x = 12,724.31

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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.