Home / 19,990.09-27,585.66-11,037.06

Finding the Fourth Proportional to 19,990.09, 27,585.66 and 11,037.06

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Solution

The fourth proportional to 19,990.09, 27,585.66 and 11,037.06 is: 15,230.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.09 : 27,585.66 = 11,037.06 : x
  2. Step 2: Convert to fraction form
    19,990.09/27,585.66 = 11,037.06/x
  3. Step 3: Cross multiply
    19,990.09x = 27,585.66 × 11,037.06
  4. Step 4: Simplify right side
    19,990.09x = 304,464,625.95
  5. Step 5: Solve for x
    x = 304,464,625.95/19,990.09
  6. Step 6: Final answer
    x = 15,230.78

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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.