Home / 20,062.18-30,076.38-12,650.32

Finding the Fourth Proportional to 20,062.18, 30,076.38 and 12,650.32

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Solution

The fourth proportional to 20,062.18, 30,076.38 and 12,650.32 is: 18,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.18 : 30,076.38 = 12,650.32 : x
  2. Step 2: Convert to fraction form
    20,062.18/30,076.38 = 12,650.32/x
  3. Step 3: Cross multiply
    20,062.18x = 30,076.38 × 12,650.32
  4. Step 4: Simplify right side
    20,062.18x = 380,475,831.44
  5. Step 5: Solve for x
    x = 380,475,831.44/20,062.18
  6. Step 6: Final answer
    x = 18,964.83

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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.