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Finding the Fourth Proportional to 27,555, 38,029.10 and 15,458.82

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Solution

The fourth proportional to 27,555, 38,029.10 and 15,458.82 is: 21,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,555 : 38,029.10 = 15,458.82 : x
  2. Step 2: Convert to fraction form
    27,555/38,029.10 = 15,458.82/x
  3. Step 3: Cross multiply
    27,555x = 38,029.10 × 15,458.82
  4. Step 4: Simplify right side
    27,555x = 587,884,934.37
  5. Step 5: Solve for x
    x = 587,884,934.37/27,555
  6. Step 6: Final answer
    x = 21,334.96

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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.