Home / 20,823.20-31,177.20-16,176.80

Finding the Fourth Proportional to 20,823.20, 31,177.20 and 16,176.80

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Solution

The fourth proportional to 20,823.20, 31,177.20 and 16,176.80 is: 24,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823.20 : 31,177.20 = 16,176.80 : x
  2. Step 2: Convert to fraction form
    20,823.20/31,177.20 = 16,176.80/x
  3. Step 3: Cross multiply
    20,823.20x = 31,177.20 × 16,176.80
  4. Step 4: Simplify right side
    20,823.20x = 504,347,328.96
  5. Step 5: Solve for x
    x = 504,347,328.96/20,823.20
  6. Step 6: Final answer
    x = 24,220.45

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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.