Home / 27,616.30-38,110.98-15,680.02

Finding the Fourth Proportional to 27,616.30, 38,110.98 and 15,680.02

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Solution

The fourth proportional to 27,616.30, 38,110.98 and 15,680.02 is: 21,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,616.30 : 38,110.98 = 15,680.02 : x
  2. Step 2: Convert to fraction form
    27,616.30/38,110.98 = 15,680.02/x
  3. Step 3: Cross multiply
    27,616.30x = 38,110.98 × 15,680.02
  4. Step 4: Simplify right side
    27,616.30x = 597,580,928.62
  5. Step 5: Solve for x
    x = 597,580,928.62/27,616.30
  6. Step 6: Final answer
    x = 21,638.70

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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.