Home / 30,881.62-42,616.56-16,734.70

Finding the Fourth Proportional to 30,881.62, 42,616.56 and 16,734.70

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Solution

The fourth proportional to 30,881.62, 42,616.56 and 16,734.70 is: 23,093.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881.62 : 42,616.56 = 16,734.70 : x
  2. Step 2: Convert to fraction form
    30,881.62/42,616.56 = 16,734.70/x
  3. Step 3: Cross multiply
    30,881.62x = 42,616.56 × 16,734.70
  4. Step 4: Simplify right side
    30,881.62x = 713,175,346.63
  5. Step 5: Solve for x
    x = 713,175,346.63/30,881.62
  6. Step 6: Final answer
    x = 23,093.85

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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.