Home / 20,944.14-31,420.86-6,908.52

Finding the Fourth Proportional to 20,944.14, 31,420.86 and 6,908.52

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Solution

The fourth proportional to 20,944.14, 31,420.86 and 6,908.52 is: 10,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.14 : 31,420.86 = 6,908.52 : x
  2. Step 2: Convert to fraction form
    20,944.14/31,420.86 = 6,908.52/x
  3. Step 3: Cross multiply
    20,944.14x = 31,420.86 × 6,908.52
  4. Step 4: Simplify right side
    20,944.14x = 217,071,639.73
  5. Step 5: Solve for x
    x = 217,071,639.73/20,944.14
  6. Step 6: Final answer
    x = 10,364.31

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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.