Home / 20,932.63-31,356.52-9,671.96

Finding the Fourth Proportional to 20,932.63, 31,356.52 and 9,671.96

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Solution

The fourth proportional to 20,932.63, 31,356.52 and 9,671.96 is: 14,488.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.63 : 31,356.52 = 9,671.96 : x
  2. Step 2: Convert to fraction form
    20,932.63/31,356.52 = 9,671.96/x
  3. Step 3: Cross multiply
    20,932.63x = 31,356.52 × 9,671.96
  4. Step 4: Simplify right side
    20,932.63x = 303,278,885.01
  5. Step 5: Solve for x
    x = 303,278,885.01/20,932.63
  6. Step 6: Final answer
    x = 14,488.33

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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.