Home / 21,039.71-31,561.32-6,046.88

Finding the Fourth Proportional to 21,039.71, 31,561.32 and 6,046.88

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Solution

The fourth proportional to 21,039.71, 31,561.32 and 6,046.88 is: 9,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.71 : 31,561.32 = 6,046.88 : x
  2. Step 2: Convert to fraction form
    21,039.71/31,561.32 = 6,046.88/x
  3. Step 3: Cross multiply
    21,039.71x = 31,561.32 × 6,046.88
  4. Step 4: Simplify right side
    21,039.71x = 190,847,514.68
  5. Step 5: Solve for x
    x = 190,847,514.68/21,039.71
  6. Step 6: Final answer
    x = 9,070.82

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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.