Home / 20,686.66-31,031.82-5,895.25

Finding the Fourth Proportional to 20,686.66, 31,031.82 and 5,895.25

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Solution

The fourth proportional to 20,686.66, 31,031.82 and 5,895.25 is: 8,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.66 : 31,031.82 = 5,895.25 : x
  2. Step 2: Convert to fraction form
    20,686.66/31,031.82 = 5,895.25/x
  3. Step 3: Cross multiply
    20,686.66x = 31,031.82 × 5,895.25
  4. Step 4: Simplify right side
    20,686.66x = 182,940,336.86
  5. Step 5: Solve for x
    x = 182,940,336.86/20,686.66
  6. Step 6: Final answer
    x = 8,843.40

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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.