Home / 28,760.48-39,690.26-16,185.68

Finding the Fourth Proportional to 28,760.48, 39,690.26 and 16,185.68

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Solution

The fourth proportional to 28,760.48, 39,690.26 and 16,185.68 is: 22,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.48 : 39,690.26 = 16,185.68 : x
  2. Step 2: Convert to fraction form
    28,760.48/39,690.26 = 16,185.68/x
  3. Step 3: Cross multiply
    28,760.48x = 39,690.26 × 16,185.68
  4. Step 4: Simplify right side
    28,760.48x = 642,413,847.48
  5. Step 5: Solve for x
    x = 642,413,847.48/28,760.48
  6. Step 6: Final answer
    x = 22,336.69

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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.