Home / 21,178.14-31,760.73-8,032.38

Finding the Fourth Proportional to 21,178.14, 31,760.73 and 8,032.38

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Solution

The fourth proportional to 21,178.14, 31,760.73 and 8,032.38 is: 12,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178.14 : 31,760.73 = 8,032.38 : x
  2. Step 2: Convert to fraction form
    21,178.14/31,760.73 = 8,032.38/x
  3. Step 3: Cross multiply
    21,178.14x = 31,760.73 × 8,032.38
  4. Step 4: Simplify right side
    21,178.14x = 255,114,252.44
  5. Step 5: Solve for x
    x = 255,114,252.44/21,178.14
  6. Step 6: Final answer
    x = 12,046.11

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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.