Home / 27,908.34-38,512.89-15,161.19

Finding the Fourth Proportional to 27,908.34, 38,512.89 and 15,161.19

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Solution

The fourth proportional to 27,908.34, 38,512.89 and 15,161.19 is: 20,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.34 : 38,512.89 = 15,161.19 : x
  2. Step 2: Convert to fraction form
    27,908.34/38,512.89 = 15,161.19/x
  3. Step 3: Cross multiply
    27,908.34x = 38,512.89 × 15,161.19
  4. Step 4: Simplify right side
    27,908.34x = 583,901,242.74
  5. Step 5: Solve for x
    x = 583,901,242.74/27,908.34
  6. Step 6: Final answer
    x = 20,922.11

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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.