Home / 21,578.91-32,343.66-9,080.21

Finding the Fourth Proportional to 21,578.91, 32,343.66 and 9,080.21

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Solution

The fourth proportional to 21,578.91, 32,343.66 and 9,080.21 is: 13,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.91 : 32,343.66 = 9,080.21 : x
  2. Step 2: Convert to fraction form
    21,578.91/32,343.66 = 9,080.21/x
  3. Step 3: Cross multiply
    21,578.91x = 32,343.66 × 9,080.21
  4. Step 4: Simplify right side
    21,578.91x = 293,687,063.25
  5. Step 5: Solve for x
    x = 293,687,063.25/21,578.91
  6. Step 6: Final answer
    x = 13,609.91

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1.5x scale

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.