Home / 34,169.44-47,145.78-20,740.36

Finding the Fourth Proportional to 34,169.44, 47,145.78 and 20,740.36

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Solution

The fourth proportional to 34,169.44, 47,145.78 and 20,740.36 is: 28,616.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,169.44 : 47,145.78 = 20,740.36 : x
  2. Step 2: Convert to fraction form
    34,169.44/47,145.78 = 20,740.36/x
  3. Step 3: Cross multiply
    34,169.44x = 47,145.78 × 20,740.36
  4. Step 4: Simplify right side
    34,169.44x = 977,820,449.68
  5. Step 5: Solve for x
    x = 977,820,449.68/34,169.44
  6. Step 6: Final answer
    x = 28,616.81

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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.