Home / 34,536.87-47,661.08-20,396.70

Finding the Fourth Proportional to 34,536.87, 47,661.08 and 20,396.70

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Solution

The fourth proportional to 34,536.87, 47,661.08 and 20,396.70 is: 28,147.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,536.87 : 47,661.08 = 20,396.70 : x
  2. Step 2: Convert to fraction form
    34,536.87/47,661.08 = 20,396.70/x
  3. Step 3: Cross multiply
    34,536.87x = 47,661.08 × 20,396.70
  4. Step 4: Simplify right side
    34,536.87x = 972,128,648.45
  5. Step 5: Solve for x
    x = 972,128,648.45/34,536.87
  6. Step 6: Final answer
    x = 28,147.56

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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.