Home / 26,816.60-40,171.44-20,945.72

Finding the Fourth Proportional to 26,816.60, 40,171.44 and 20,945.72

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Solution

The fourth proportional to 26,816.60, 40,171.44 and 20,945.72 is: 31,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,816.60 : 40,171.44 = 20,945.72 : x
  2. Step 2: Convert to fraction form
    26,816.60/40,171.44 = 20,945.72/x
  3. Step 3: Cross multiply
    26,816.60x = 40,171.44 × 20,945.72
  4. Step 4: Simplify right side
    26,816.60x = 841,419,734.24
  5. Step 5: Solve for x
    x = 841,419,734.24/26,816.60
  6. Step 6: Final answer
    x = 31,376.82

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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.