Home / 21,976.83-32,986.90-15,658.73

Finding the Fourth Proportional to 21,976.83, 32,986.90 and 15,658.73

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Solution

The fourth proportional to 21,976.83, 32,986.90 and 15,658.73 is: 23,503.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,976.83 : 32,986.90 = 15,658.73 : x
  2. Step 2: Convert to fraction form
    21,976.83/32,986.90 = 15,658.73/x
  3. Step 3: Cross multiply
    21,976.83x = 32,986.90 × 15,658.73
  4. Step 4: Simplify right side
    21,976.83x = 516,532,795.70
  5. Step 5: Solve for x
    x = 516,532,795.70/21,976.83
  6. Step 6: Final answer
    x = 23,503.52

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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.