Home / 21,561.66-32,339.84-5,767.88

Finding the Fourth Proportional to 21,561.66, 32,339.84 and 5,767.88

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Solution

The fourth proportional to 21,561.66, 32,339.84 and 5,767.88 is: 8,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.66 : 32,339.84 = 5,767.88 : x
  2. Step 2: Convert to fraction form
    21,561.66/32,339.84 = 5,767.88/x
  3. Step 3: Cross multiply
    21,561.66x = 32,339.84 × 5,767.88
  4. Step 4: Simplify right side
    21,561.66x = 186,532,125.80
  5. Step 5: Solve for x
    x = 186,532,125.80/21,561.66
  6. Step 6: Final answer
    x = 8,651.10

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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.