Home / 20,774.27-31,114.92-9,664.31

Finding the Fourth Proportional to 20,774.27, 31,114.92 and 9,664.31

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Solution

The fourth proportional to 20,774.27, 31,114.92 and 9,664.31 is: 14,474.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.27 : 31,114.92 = 9,664.31 : x
  2. Step 2: Convert to fraction form
    20,774.27/31,114.92 = 9,664.31/x
  3. Step 3: Cross multiply
    20,774.27x = 31,114.92 × 9,664.31
  4. Step 4: Simplify right side
    20,774.27x = 300,704,076.93
  5. Step 5: Solve for x
    x = 300,704,076.93/20,774.27
  6. Step 6: Final answer
    x = 14,474.84

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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.