Home / 26,276.40-39,414.60-16,945.20

Finding the Fourth Proportional to 26,276.40, 39,414.60 and 16,945.20

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Solution

The fourth proportional to 26,276.40, 39,414.60 and 16,945.20 is: 25,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,276.40 : 39,414.60 = 16,945.20 : x
  2. Step 2: Convert to fraction form
    26,276.40/39,414.60 = 16,945.20/x
  3. Step 3: Cross multiply
    26,276.40x = 39,414.60 × 16,945.20
  4. Step 4: Simplify right side
    26,276.40x = 667,888,279.92
  5. Step 5: Solve for x
    x = 667,888,279.92/26,276.40
  6. Step 6: Final answer
    x = 25,417.80

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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.