Home / 23,016.96-31,777.92-15,940.80

Finding the Fourth Proportional to 23,016.96, 31,777.92 and 15,940.80

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Solution

The fourth proportional to 23,016.96, 31,777.92 and 15,940.80 is: 22,008.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,016.96 : 31,777.92 = 15,940.80 : x
  2. Step 2: Convert to fraction form
    23,016.96/31,777.92 = 15,940.80/x
  3. Step 3: Cross multiply
    23,016.96x = 31,777.92 × 15,940.80
  4. Step 4: Simplify right side
    23,016.96x = 506,565,467.14
  5. Step 5: Solve for x
    x = 506,565,467.14/23,016.96
  6. Step 6: Final answer
    x = 22,008.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.