Home / 21,982.32-32,988.06-11,601.36

Finding the Fourth Proportional to 21,982.32, 32,988.06 and 11,601.36

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Solution

The fourth proportional to 21,982.32, 32,988.06 and 11,601.36 is: 17,409.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.32 : 32,988.06 = 11,601.36 : x
  2. Step 2: Convert to fraction form
    21,982.32/32,988.06 = 11,601.36/x
  3. Step 3: Cross multiply
    21,982.32x = 32,988.06 × 11,601.36
  4. Step 4: Simplify right side
    21,982.32x = 382,706,359.76
  5. Step 5: Solve for x
    x = 382,706,359.76/21,982.32
  6. Step 6: Final answer
    x = 17,409.73

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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.