Home / 40,722.75-61,028.64-20,959.56

Finding the Fourth Proportional to 40,722.75, 61,028.64 and 20,959.56

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Solution

The fourth proportional to 40,722.75, 61,028.64 and 20,959.56 is: 31,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,722.75 : 61,028.64 = 20,959.56 : x
  2. Step 2: Convert to fraction form
    40,722.75/61,028.64 = 20,959.56/x
  3. Step 3: Cross multiply
    40,722.75x = 61,028.64 × 20,959.56
  4. Step 4: Simplify right side
    40,722.75x = 1,279,133,441.80
  5. Step 5: Solve for x
    x = 1,279,133,441.80/40,722.75
  6. Step 6: Final answer
    x = 31,410.78

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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.