Home / 19,578.17-27,017.86-11,080.13

Finding the Fourth Proportional to 19,578.17, 27,017.86 and 11,080.13

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Solution

The fourth proportional to 19,578.17, 27,017.86 and 11,080.13 is: 15,290.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.17 : 27,017.86 = 11,080.13 : x
  2. Step 2: Convert to fraction form
    19,578.17/27,017.86 = 11,080.13/x
  3. Step 3: Cross multiply
    19,578.17x = 27,017.86 × 11,080.13
  4. Step 4: Simplify right side
    19,578.17x = 299,361,345.72
  5. Step 5: Solve for x
    x = 299,361,345.72/19,578.17
  6. Step 6: Final answer
    x = 15,290.57

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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.