Home / 20,026.70-30,039.71-8,177.86

Finding the Fourth Proportional to 20,026.70, 30,039.71 and 8,177.86

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Solution

The fourth proportional to 20,026.70, 30,039.71 and 8,177.86 is: 12,266.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.70 : 30,039.71 = 8,177.86 : x
  2. Step 2: Convert to fraction form
    20,026.70/30,039.71 = 8,177.86/x
  3. Step 3: Cross multiply
    20,026.70x = 30,039.71 × 8,177.86
  4. Step 4: Simplify right side
    20,026.70x = 245,660,542.82
  5. Step 5: Solve for x
    x = 245,660,542.82/20,026.70
  6. Step 6: Final answer
    x = 12,266.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.