Home / 22,835.80-31,538.15-15,684.54

Finding the Fourth Proportional to 22,835.80, 31,538.15 and 15,684.54

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Solution

The fourth proportional to 22,835.80, 31,538.15 and 15,684.54 is: 21,661.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,835.80 : 31,538.15 = 15,684.54 : x
  2. Step 2: Convert to fraction form
    22,835.80/31,538.15 = 15,684.54/x
  3. Step 3: Cross multiply
    22,835.80x = 31,538.15 × 15,684.54
  4. Step 4: Simplify right side
    22,835.80x = 494,661,375.20
  5. Step 5: Solve for x
    x = 494,661,375.20/22,835.80
  6. Step 6: Final answer
    x = 21,661.66

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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.