Home / 20,876.44-31,236.19-14,648.60

Finding the Fourth Proportional to 20,876.44, 31,236.19 and 14,648.60

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Solution

The fourth proportional to 20,876.44, 31,236.19 and 14,648.60 is: 21,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876.44 : 31,236.19 = 14,648.60 : x
  2. Step 2: Convert to fraction form
    20,876.44/31,236.19 = 14,648.60/x
  3. Step 3: Cross multiply
    20,876.44x = 31,236.19 × 14,648.60
  4. Step 4: Simplify right side
    20,876.44x = 457,566,494.30
  5. Step 5: Solve for x
    x = 457,566,494.30/20,876.44
  6. Step 6: Final answer
    x = 21,917.84

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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.