Home / 27,019.09-37,286.19-15,691.36

Finding the Fourth Proportional to 27,019.09, 37,286.19 and 15,691.36

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Solution

The fourth proportional to 27,019.09, 37,286.19 and 15,691.36 is: 21,653.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,019.09 : 37,286.19 = 15,691.36 : x
  2. Step 2: Convert to fraction form
    27,019.09/37,286.19 = 15,691.36/x
  3. Step 3: Cross multiply
    27,019.09x = 37,286.19 × 15,691.36
  4. Step 4: Simplify right side
    27,019.09x = 585,071,030.32
  5. Step 5: Solve for x
    x = 585,071,030.32/27,019.09
  6. Step 6: Final answer
    x = 21,653.99

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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.