Home / 27,616.49-38,110.94-15,680.04

Finding the Fourth Proportional to 27,616.49, 38,110.94 and 15,680.04

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Solution

The fourth proportional to 27,616.49, 38,110.94 and 15,680.04 is: 21,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,616.49 : 38,110.94 = 15,680.04 : x
  2. Step 2: Convert to fraction form
    27,616.49/38,110.94 = 15,680.04/x
  3. Step 3: Cross multiply
    27,616.49x = 38,110.94 × 15,680.04
  4. Step 4: Simplify right side
    27,616.49x = 597,581,063.64
  5. Step 5: Solve for x
    x = 597,581,063.64/27,616.49
  6. Step 6: Final answer
    x = 21,638.56

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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.