Home / 28,072.78-42,142.65-22,234.30

Finding the Fourth Proportional to 28,072.78, 42,142.65 and 22,234.30

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Solution

The fourth proportional to 28,072.78, 42,142.65 and 22,234.30 is: 33,377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072.78 : 42,142.65 = 22,234.30 : x
  2. Step 2: Convert to fraction form
    28,072.78/42,142.65 = 22,234.30/x
  3. Step 3: Cross multiply
    28,072.78x = 42,142.65 × 22,234.30
  4. Step 4: Simplify right side
    28,072.78x = 937,012,322.90
  5. Step 5: Solve for x
    x = 937,012,322.90/28,072.78
  6. Step 6: Final answer
    x = 33,377.97

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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.