Home / 21,701.18-32,553.40-9,219.80

Finding the Fourth Proportional to 21,701.18, 32,553.40 and 9,219.80

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Solution

The fourth proportional to 21,701.18, 32,553.40 and 9,219.80 is: 13,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.18 : 32,553.40 = 9,219.80 : x
  2. Step 2: Convert to fraction form
    21,701.18/32,553.40 = 9,219.80/x
  3. Step 3: Cross multiply
    21,701.18x = 32,553.40 × 9,219.80
  4. Step 4: Simplify right side
    21,701.18x = 300,135,837.32
  5. Step 5: Solve for x
    x = 300,135,837.32/21,701.18
  6. Step 6: Final answer
    x = 13,830.39

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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.