Home / 29,820.26-41,138.42-18,486.74

Finding the Fourth Proportional to 29,820.26, 41,138.42 and 18,486.74

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Solution

The fourth proportional to 29,820.26, 41,138.42 and 18,486.74 is: 25,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,820.26 : 41,138.42 = 18,486.74 : x
  2. Step 2: Convert to fraction form
    29,820.26/41,138.42 = 18,486.74/x
  3. Step 3: Cross multiply
    29,820.26x = 41,138.42 × 18,486.74
  4. Step 4: Simplify right side
    29,820.26x = 760,515,274.55
  5. Step 5: Solve for x
    x = 760,515,274.55/29,820.26
  6. Step 6: Final answer
    x = 25,503.31

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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.