Home / 29,142.22-43,736.20-20,319.70

Finding the Fourth Proportional to 29,142.22, 43,736.20 and 20,319.70

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Solution

The fourth proportional to 29,142.22, 43,736.20 and 20,319.70 is: 30,495.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,142.22 : 43,736.20 = 20,319.70 : x
  2. Step 2: Convert to fraction form
    29,142.22/43,736.20 = 20,319.70/x
  3. Step 3: Cross multiply
    29,142.22x = 43,736.20 × 20,319.70
  4. Step 4: Simplify right side
    29,142.22x = 888,706,463.14
  5. Step 5: Solve for x
    x = 888,706,463.14/29,142.22
  6. Step 6: Final answer
    x = 30,495.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.