Home / 20,040.39-30,060.86-18,822.69

Finding the Fourth Proportional to 20,040.39, 30,060.86 and 18,822.69

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Solution

The fourth proportional to 20,040.39, 30,060.86 and 18,822.69 is: 28,234.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.39 : 30,060.86 = 18,822.69 : x
  2. Step 2: Convert to fraction form
    20,040.39/30,060.86 = 18,822.69/x
  3. Step 3: Cross multiply
    20,040.39x = 30,060.86 × 18,822.69
  4. Step 4: Simplify right side
    20,040.39x = 565,826,154.80
  5. Step 5: Solve for x
    x = 565,826,154.80/20,040.39
  6. Step 6: Final answer
    x = 28,234.29

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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.