Home / 21,982.20-32,924.70-8,827.80

Finding the Fourth Proportional to 21,982.20, 32,924.70 and 8,827.80

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Solution

The fourth proportional to 21,982.20, 32,924.70 and 8,827.80 is: 13,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.20 : 32,924.70 = 8,827.80 : x
  2. Step 2: Convert to fraction form
    21,982.20/32,924.70 = 8,827.80/x
  3. Step 3: Cross multiply
    21,982.20x = 32,924.70 × 8,827.80
  4. Step 4: Simplify right side
    21,982.20x = 290,652,666.66
  5. Step 5: Solve for x
    x = 290,652,666.66/21,982.20
  6. Step 6: Final answer
    x = 13,222.18

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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.