Home / 30,876.43-42,608.91-17,447.39

Finding the Fourth Proportional to 30,876.43, 42,608.91 and 17,447.39

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Solution

The fourth proportional to 30,876.43, 42,608.91 and 17,447.39 is: 24,077.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,876.43 : 42,608.91 = 17,447.39 : x
  2. Step 2: Convert to fraction form
    30,876.43/42,608.91 = 17,447.39/x
  3. Step 3: Cross multiply
    30,876.43x = 42,608.91 × 17,447.39
  4. Step 4: Simplify right side
    30,876.43x = 743,414,270.24
  5. Step 5: Solve for x
    x = 743,414,270.24/30,876.43
  6. Step 6: Final answer
    x = 24,077.08

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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.