Home / 27,680.10-38,203.76-17,336.64

Finding the Fourth Proportional to 27,680.10, 38,203.76 and 17,336.64

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Solution

The fourth proportional to 27,680.10, 38,203.76 and 17,336.64 is: 23,927.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,680.10 : 38,203.76 = 17,336.64 : x
  2. Step 2: Convert to fraction form
    27,680.10/38,203.76 = 17,336.64/x
  3. Step 3: Cross multiply
    27,680.10x = 38,203.76 × 17,336.64
  4. Step 4: Simplify right side
    27,680.10x = 662,324,833.77
  5. Step 5: Solve for x
    x = 662,324,833.77/27,680.10
  6. Step 6: Final answer
    x = 23,927.83

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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.