Home / 21,982.51-32,990.10-13,674.61

Finding the Fourth Proportional to 21,982.51, 32,990.10 and 13,674.61

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Solution

The fourth proportional to 21,982.51, 32,990.10 and 13,674.61 is: 20,522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.51 : 32,990.10 = 13,674.61 : x
  2. Step 2: Convert to fraction form
    21,982.51/32,990.10 = 13,674.61/x
  3. Step 3: Cross multiply
    21,982.51x = 32,990.10 × 13,674.61
  4. Step 4: Simplify right side
    21,982.51x = 451,126,751.36
  5. Step 5: Solve for x
    x = 451,126,751.36/21,982.51
  6. Step 6: Final answer
    x = 20,522.08

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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.