Home / 31,049.66-42,847.44-16,902.20

Finding the Fourth Proportional to 31,049.66, 42,847.44 and 16,902.20

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Solution

The fourth proportional to 31,049.66, 42,847.44 and 16,902.20 is: 23,324.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,049.66 : 42,847.44 = 16,902.20 : x
  2. Step 2: Convert to fraction form
    31,049.66/42,847.44 = 16,902.20/x
  3. Step 3: Cross multiply
    31,049.66x = 42,847.44 × 16,902.20
  4. Step 4: Simplify right side
    31,049.66x = 724,216,000.37
  5. Step 5: Solve for x
    x = 724,216,000.37/31,049.66
  6. Step 6: Final answer
    x = 23,324.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.