Home / 20,733.60-31,076.10-10,867.80

Finding the Fourth Proportional to 20,733.60, 31,076.10 and 10,867.80

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Solution

The fourth proportional to 20,733.60, 31,076.10 and 10,867.80 is: 16,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.60 : 31,076.10 = 10,867.80 : x
  2. Step 2: Convert to fraction form
    20,733.60/31,076.10 = 10,867.80/x
  3. Step 3: Cross multiply
    20,733.60x = 31,076.10 × 10,867.80
  4. Step 4: Simplify right side
    20,733.60x = 337,728,839.58
  5. Step 5: Solve for x
    x = 337,728,839.58/20,733.60
  6. Step 6: Final answer
    x = 16,288.96

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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.