Home / 21,561.17-32,339.49-5,767.80

Finding the Fourth Proportional to 21,561.17, 32,339.49 and 5,767.80

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Solution

The fourth proportional to 21,561.17, 32,339.49 and 5,767.80 is: 8,651.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.17 : 32,339.49 = 5,767.80 : x
  2. Step 2: Convert to fraction form
    21,561.17/32,339.49 = 5,767.80/x
  3. Step 3: Cross multiply
    21,561.17x = 32,339.49 × 5,767.80
  4. Step 4: Simplify right side
    21,561.17x = 186,527,681.58
  5. Step 5: Solve for x
    x = 186,527,681.58/21,561.17
  6. Step 6: Final answer
    x = 8,651.09

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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.