Home / 28,687.36-39,584.25-16,109.68

Finding the Fourth Proportional to 28,687.36, 39,584.25 and 16,109.68

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Solution

The fourth proportional to 28,687.36, 39,584.25 and 16,109.68 is: 22,228.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.36 : 39,584.25 = 16,109.68 : x
  2. Step 2: Convert to fraction form
    28,687.36/39,584.25 = 16,109.68/x
  3. Step 3: Cross multiply
    28,687.36x = 39,584.25 × 16,109.68
  4. Step 4: Simplify right side
    28,687.36x = 637,689,600.54
  5. Step 5: Solve for x
    x = 637,689,600.54/28,687.36
  6. Step 6: Final answer
    x = 22,228.94

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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.