Home / 21,127.16-31,691.16-6,336.32

Finding the Fourth Proportional to 21,127.16, 31,691.16 and 6,336.32

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Solution

The fourth proportional to 21,127.16, 31,691.16 and 6,336.32 is: 9,504.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,127.16 : 31,691.16 = 6,336.32 : x
  2. Step 2: Convert to fraction form
    21,127.16/31,691.16 = 6,336.32/x
  3. Step 3: Cross multiply
    21,127.16x = 31,691.16 × 6,336.32
  4. Step 4: Simplify right side
    21,127.16x = 200,805,330.93
  5. Step 5: Solve for x
    x = 200,805,330.93/21,127.16
  6. Step 6: Final answer
    x = 9,504.61

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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.