Home / 21,757.18-32,638.91-8,253.33

Finding the Fourth Proportional to 21,757.18, 32,638.91 and 8,253.33

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Solution

The fourth proportional to 21,757.18, 32,638.91 and 8,253.33 is: 12,381.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,757.18 : 32,638.91 = 8,253.33 : x
  2. Step 2: Convert to fraction form
    21,757.18/32,638.91 = 8,253.33/x
  3. Step 3: Cross multiply
    21,757.18x = 32,638.91 × 8,253.33
  4. Step 4: Simplify right side
    21,757.18x = 269,379,695.07
  5. Step 5: Solve for x
    x = 269,379,695.07/21,757.18
  6. Step 6: Final answer
    x = 12,381.19

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1.5x scale

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.