Home / 20,799.48-31,213.80-12,022.32

Finding the Fourth Proportional to 20,799.48, 31,213.80 and 12,022.32

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Solution

The fourth proportional to 20,799.48, 31,213.80 and 12,022.32 is: 18,041.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799.48 : 31,213.80 = 12,022.32 : x
  2. Step 2: Convert to fraction form
    20,799.48/31,213.80 = 12,022.32/x
  3. Step 3: Cross multiply
    20,799.48x = 31,213.80 × 12,022.32
  4. Step 4: Simplify right side
    20,799.48x = 375,262,292.02
  5. Step 5: Solve for x
    x = 375,262,292.02/20,799.48
  6. Step 6: Final answer
    x = 18,041.91

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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.