Home / 20,832.80-31,233.04-10,295.56

Finding the Fourth Proportional to 20,832.80, 31,233.04 and 10,295.56

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Solution

The fourth proportional to 20,832.80, 31,233.04 and 10,295.56 is: 15,435.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.80 : 31,233.04 = 10,295.56 : x
  2. Step 2: Convert to fraction form
    20,832.80/31,233.04 = 10,295.56/x
  3. Step 3: Cross multiply
    20,832.80x = 31,233.04 × 10,295.56
  4. Step 4: Simplify right side
    20,832.80x = 321,561,637.30
  5. Step 5: Solve for x
    x = 321,561,637.30/20,832.80
  6. Step 6: Final answer
    x = 15,435.35

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1.5x scale

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.