Home / 27,717.34-38,249.86-15,142.18

Finding the Fourth Proportional to 27,717.34, 38,249.86 and 15,142.18

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Solution

The fourth proportional to 27,717.34, 38,249.86 and 15,142.18 is: 20,896.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,717.34 : 38,249.86 = 15,142.18 : x
  2. Step 2: Convert to fraction form
    27,717.34/38,249.86 = 15,142.18/x
  3. Step 3: Cross multiply
    27,717.34x = 38,249.86 × 15,142.18
  4. Step 4: Simplify right side
    27,717.34x = 579,186,265.09
  5. Step 5: Solve for x
    x = 579,186,265.09/27,717.34
  6. Step 6: Final answer
    x = 20,896.17

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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.