Home / 19,578.46-27,019.61-11,080.58

Finding the Fourth Proportional to 19,578.46, 27,019.61 and 11,080.58

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Solution

The fourth proportional to 19,578.46, 27,019.61 and 11,080.58 is: 15,291.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.46 : 27,019.61 = 11,080.58 : x
  2. Step 2: Convert to fraction form
    19,578.46/27,019.61 = 11,080.58/x
  3. Step 3: Cross multiply
    19,578.46x = 27,019.61 × 11,080.58
  4. Step 4: Simplify right side
    19,578.46x = 299,392,950.17
  5. Step 5: Solve for x
    x = 299,392,950.17/19,578.46
  6. Step 6: Final answer
    x = 15,291.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.