Home / 27,725.27-38,264.83-15,789.71

Finding the Fourth Proportional to 27,725.27, 38,264.83 and 15,789.71

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Solution

The fourth proportional to 27,725.27, 38,264.83 and 15,789.71 is: 21,792.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,725.27 : 38,264.83 = 15,789.71 : x
  2. Step 2: Convert to fraction form
    27,725.27/38,264.83 = 15,789.71/x
  3. Step 3: Cross multiply
    27,725.27x = 38,264.83 × 15,789.71
  4. Step 4: Simplify right side
    27,725.27x = 604,190,625.09
  5. Step 5: Solve for x
    x = 604,190,625.09/27,725.27
  6. Step 6: Final answer
    x = 21,792.06

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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.