Home / 28,022.06-42,039.75-8,031.80

Finding the Fourth Proportional to 28,022.06, 42,039.75 and 8,031.80

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Solution

The fourth proportional to 28,022.06, 42,039.75 and 8,031.80 is: 12,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.06 : 42,039.75 = 8,031.80 : x
  2. Step 2: Convert to fraction form
    28,022.06/42,039.75 = 8,031.80/x
  3. Step 3: Cross multiply
    28,022.06x = 42,039.75 × 8,031.80
  4. Step 4: Simplify right side
    28,022.06x = 337,654,864.05
  5. Step 5: Solve for x
    x = 337,654,864.05/28,022.06
  6. Step 6: Final answer
    x = 12,049.61

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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.