Home / 28,078.27-38,746.42-16,760.55

Finding the Fourth Proportional to 28,078.27, 38,746.42 and 16,760.55

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Solution

The fourth proportional to 28,078.27, 38,746.42 and 16,760.55 is: 23,128.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.27 : 38,746.42 = 16,760.55 : x
  2. Step 2: Convert to fraction form
    28,078.27/38,746.42 = 16,760.55/x
  3. Step 3: Cross multiply
    28,078.27x = 38,746.42 × 16,760.55
  4. Step 4: Simplify right side
    28,078.27x = 649,411,309.73
  5. Step 5: Solve for x
    x = 649,411,309.73/28,078.27
  6. Step 6: Final answer
    x = 23,128.61

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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.