Home / 20,146.76-27,793.90-12,587.93

Finding the Fourth Proportional to 20,146.76, 27,793.90 and 12,587.93

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Solution

The fourth proportional to 20,146.76, 27,793.90 and 12,587.93 is: 17,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.76 : 27,793.90 = 12,587.93 : x
  2. Step 2: Convert to fraction form
    20,146.76/27,793.90 = 12,587.93/x
  3. Step 3: Cross multiply
    20,146.76x = 27,793.90 × 12,587.93
  4. Step 4: Simplify right side
    20,146.76x = 349,867,604.69
  5. Step 5: Solve for x
    x = 349,867,604.69/20,146.76
  6. Step 6: Final answer
    x = 17,365.95

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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.