Home / 28,637.76-39,496.68-20,167.98

Finding the Fourth Proportional to 28,637.76, 39,496.68 and 20,167.98

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Solution

The fourth proportional to 28,637.76, 39,496.68 and 20,167.98 is: 27,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637.76 : 39,496.68 = 20,167.98 : x
  2. Step 2: Convert to fraction form
    28,637.76/39,496.68 = 20,167.98/x
  3. Step 3: Cross multiply
    28,637.76x = 39,496.68 × 20,167.98
  4. Step 4: Simplify right side
    28,637.76x = 796,568,252.31
  5. Step 5: Solve for x
    x = 796,568,252.31/28,637.76
  6. Step 6: Final answer
    x = 27,815.31

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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.