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Finding the Fourth Proportional to 27,445, 37,879.59 and 15,508.48

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Solution

The fourth proportional to 27,445, 37,879.59 and 15,508.48 is: 21,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,445 : 37,879.59 = 15,508.48 : x
  2. Step 2: Convert to fraction form
    27,445/37,879.59 = 15,508.48/x
  3. Step 3: Cross multiply
    27,445x = 37,879.59 × 15,508.48
  4. Step 4: Simplify right side
    27,445x = 587,454,863.92
  5. Step 5: Solve for x
    x = 587,454,863.92/27,445
  6. Step 6: Final answer
    x = 21,404.80

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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.