Home / 30,219.90-41,708.60-17,480.82

Finding the Fourth Proportional to 30,219.90, 41,708.60 and 17,480.82

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Solution

The fourth proportional to 30,219.90, 41,708.60 and 17,480.82 is: 24,126.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.90 : 41,708.60 = 17,480.82 : x
  2. Step 2: Convert to fraction form
    30,219.90/41,708.60 = 17,480.82/x
  3. Step 3: Cross multiply
    30,219.90x = 41,708.60 × 17,480.82
  4. Step 4: Simplify right side
    30,219.90x = 729,100,663.61
  5. Step 5: Solve for x
    x = 729,100,663.61/30,219.90
  6. Step 6: Final answer
    x = 24,126.51

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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.