Home / 30,910.70-42,656.26-17,481.45

Finding the Fourth Proportional to 30,910.70, 42,656.26 and 17,481.45

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Solution

The fourth proportional to 30,910.70, 42,656.26 and 17,481.45 is: 24,124.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,910.70 : 42,656.26 = 17,481.45 : x
  2. Step 2: Convert to fraction form
    30,910.70/42,656.26 = 17,481.45/x
  3. Step 3: Cross multiply
    30,910.70x = 42,656.26 × 17,481.45
  4. Step 4: Simplify right side
    30,910.70x = 745,693,126.03
  5. Step 5: Solve for x
    x = 745,693,126.03/30,910.70
  6. Step 6: Final answer
    x = 24,124.11

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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.