Home / 20,944.74-31,426.43-10,425.27

Finding the Fourth Proportional to 20,944.74, 31,426.43 and 10,425.27

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Solution

The fourth proportional to 20,944.74, 31,426.43 and 10,425.27 is: 15,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.74 : 31,426.43 = 10,425.27 : x
  2. Step 2: Convert to fraction form
    20,944.74/31,426.43 = 10,425.27/x
  3. Step 3: Cross multiply
    20,944.74x = 31,426.43 × 10,425.27
  4. Step 4: Simplify right side
    20,944.74x = 327,628,965.76
  5. Step 5: Solve for x
    x = 327,628,965.76/20,944.74
  6. Step 6: Final answer
    x = 15,642.54

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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.