Home / 27,843.70-38,425.29-15,746.86

Finding the Fourth Proportional to 27,843.70, 38,425.29 and 15,746.86

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Solution

The fourth proportional to 27,843.70, 38,425.29 and 15,746.86 is: 21,731.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,843.70 : 38,425.29 = 15,746.86 : x
  2. Step 2: Convert to fraction form
    27,843.70/38,425.29 = 15,746.86/x
  3. Step 3: Cross multiply
    27,843.70x = 38,425.29 × 15,746.86
  4. Step 4: Simplify right side
    27,843.70x = 605,077,434.93
  5. Step 5: Solve for x
    x = 605,077,434.93/27,843.70
  6. Step 6: Final answer
    x = 21,731.22

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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.