Home / 28,442.96-42,670.50-10,912.64

Finding the Fourth Proportional to 28,442.96, 42,670.50 and 10,912.64

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Solution

The fourth proportional to 28,442.96, 42,670.50 and 10,912.64 is: 16,371.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.96 : 42,670.50 = 10,912.64 : x
  2. Step 2: Convert to fraction form
    28,442.96/42,670.50 = 10,912.64/x
  3. Step 3: Cross multiply
    28,442.96x = 42,670.50 × 10,912.64
  4. Step 4: Simplify right side
    28,442.96x = 465,647,805.12
  5. Step 5: Solve for x
    x = 465,647,805.12/28,442.96
  6. Step 6: Final answer
    x = 16,371.29

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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.