Home / 21,409.75-32,127.60-9,097.75

Finding the Fourth Proportional to 21,409.75, 32,127.60 and 9,097.75

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Solution

The fourth proportional to 21,409.75, 32,127.60 and 9,097.75 is: 13,652.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.75 : 32,127.60 = 9,097.75 : x
  2. Step 2: Convert to fraction form
    21,409.75/32,127.60 = 9,097.75/x
  3. Step 3: Cross multiply
    21,409.75x = 32,127.60 × 9,097.75
  4. Step 4: Simplify right side
    21,409.75x = 292,288,872.90
  5. Step 5: Solve for x
    x = 292,288,872.90/21,409.75
  6. Step 6: Final answer
    x = 13,652.14

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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.