Home / 30,881.25-42,616.13-16,734.09

Finding the Fourth Proportional to 30,881.25, 42,616.13 and 16,734.09

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Solution

The fourth proportional to 30,881.25, 42,616.13 and 16,734.09 is: 23,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881.25 : 42,616.13 = 16,734.09 : x
  2. Step 2: Convert to fraction form
    30,881.25/42,616.13 = 16,734.09/x
  3. Step 3: Cross multiply
    30,881.25x = 42,616.13 × 16,734.09
  4. Step 4: Simplify right side
    30,881.25x = 713,142,231.01
  5. Step 5: Solve for x
    x = 713,142,231.01/30,881.25
  6. Step 6: Final answer
    x = 23,093.05

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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.