Home / 28,578.71-39,676.19-27,723.35

Finding the Fourth Proportional to 28,578.71, 39,676.19 and 27,723.35

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Solution

The fourth proportional to 28,578.71, 39,676.19 and 27,723.35 is: 38,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.71 : 39,676.19 = 27,723.35 : x
  2. Step 2: Convert to fraction form
    28,578.71/39,676.19 = 27,723.35/x
  3. Step 3: Cross multiply
    28,578.71x = 39,676.19 × 27,723.35
  4. Step 4: Simplify right side
    28,578.71x = 1,099,956,565.04
  5. Step 5: Solve for x
    x = 1,099,956,565.04/28,578.71
  6. Step 6: Final answer
    x = 38,488.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.