Home / 27,910.40-38,516.68-15,335.16

Finding the Fourth Proportional to 27,910.40, 38,516.68 and 15,335.16

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Solution

The fourth proportional to 27,910.40, 38,516.68 and 15,335.16 is: 21,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,910.40 : 38,516.68 = 15,335.16 : x
  2. Step 2: Convert to fraction form
    27,910.40/38,516.68 = 15,335.16/x
  3. Step 3: Cross multiply
    27,910.40x = 38,516.68 × 15,335.16
  4. Step 4: Simplify right side
    27,910.40x = 590,659,450.47
  5. Step 5: Solve for x
    x = 590,659,450.47/27,910.40
  6. Step 6: Final answer
    x = 21,162.70

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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.