Home / 27,843.35-38,423.34-15,743.63

Finding the Fourth Proportional to 27,843.35, 38,423.34 and 15,743.63

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Solution

The fourth proportional to 27,843.35, 38,423.34 and 15,743.63 is: 21,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,843.35 : 38,423.34 = 15,743.63 : x
  2. Step 2: Convert to fraction form
    27,843.35/38,423.34 = 15,743.63/x
  3. Step 3: Cross multiply
    27,843.35x = 38,423.34 × 15,743.63
  4. Step 4: Simplify right side
    27,843.35x = 604,922,656.21
  5. Step 5: Solve for x
    x = 604,922,656.21/27,843.35
  6. Step 6: Final answer
    x = 21,725.93

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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.