Home / 31,069.85-42,876.39-16,922.70

Finding the Fourth Proportional to 31,069.85, 42,876.39 and 16,922.70

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Solution

The fourth proportional to 31,069.85, 42,876.39 and 16,922.70 is: 23,353.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,069.85 : 42,876.39 = 16,922.70 : x
  2. Step 2: Convert to fraction form
    31,069.85/42,876.39 = 16,922.70/x
  3. Step 3: Cross multiply
    31,069.85x = 42,876.39 × 16,922.70
  4. Step 4: Simplify right side
    31,069.85x = 725,584,285.05
  5. Step 5: Solve for x
    x = 725,584,285.05/31,069.85
  6. Step 6: Final answer
    x = 23,353.33

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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.