Home / 21,982.86-32,910.03-13,637.70

Finding the Fourth Proportional to 21,982.86, 32,910.03 and 13,637.70

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Solution

The fourth proportional to 21,982.86, 32,910.03 and 13,637.70 is: 20,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.86 : 32,910.03 = 13,637.70 : x
  2. Step 2: Convert to fraction form
    21,982.86/32,910.03 = 13,637.70/x
  3. Step 3: Cross multiply
    21,982.86x = 32,910.03 × 13,637.70
  4. Step 4: Simplify right side
    21,982.86x = 448,817,116.13
  5. Step 5: Solve for x
    x = 448,817,116.13/21,982.86
  6. Step 6: Final answer
    x = 20,416.68

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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.