Home / 29,404.50-40,578.21-15,975.78

Finding the Fourth Proportional to 29,404.50, 40,578.21 and 15,975.78

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Solution

The fourth proportional to 29,404.50, 40,578.21 and 15,975.78 is: 22,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,404.50 : 40,578.21 = 15,975.78 : x
  2. Step 2: Convert to fraction form
    29,404.50/40,578.21 = 15,975.78/x
  3. Step 3: Cross multiply
    29,404.50x = 40,578.21 × 15,975.78
  4. Step 4: Simplify right side
    29,404.50x = 648,268,555.75
  5. Step 5: Solve for x
    x = 648,268,555.75/29,404.50
  6. Step 6: Final answer
    x = 22,046.58

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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.