Home / 21,799.86-32,719.22-10,119.66

Finding the Fourth Proportional to 21,799.86, 32,719.22 and 10,119.66

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Solution

The fourth proportional to 21,799.86, 32,719.22 and 10,119.66 is: 15,188.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.86 : 32,719.22 = 10,119.66 : x
  2. Step 2: Convert to fraction form
    21,799.86/32,719.22 = 10,119.66/x
  3. Step 3: Cross multiply
    21,799.86x = 32,719.22 × 10,119.66
  4. Step 4: Simplify right side
    21,799.86x = 331,107,243.57
  5. Step 5: Solve for x
    x = 331,107,243.57/21,799.86
  6. Step 6: Final answer
    x = 15,188.51

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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.