Home / 27,644.58-38,149.49-15,707.91

Finding the Fourth Proportional to 27,644.58, 38,149.49 and 15,707.91

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Solution

The fourth proportional to 27,644.58, 38,149.49 and 15,707.91 is: 21,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,644.58 : 38,149.49 = 15,707.91 : x
  2. Step 2: Convert to fraction form
    27,644.58/38,149.49 = 15,707.91/x
  3. Step 3: Cross multiply
    27,644.58x = 38,149.49 × 15,707.91
  4. Step 4: Simplify right side
    27,644.58x = 599,248,755.47
  5. Step 5: Solve for x
    x = 599,248,755.47/27,644.58
  6. Step 6: Final answer
    x = 21,676.90

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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.