Home / 28,919.22-39,908.24-16,172.26

Finding the Fourth Proportional to 28,919.22, 39,908.24 and 16,172.26

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Solution

The fourth proportional to 28,919.22, 39,908.24 and 16,172.26 is: 22,317.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,919.22 : 39,908.24 = 16,172.26 : x
  2. Step 2: Convert to fraction form
    28,919.22/39,908.24 = 16,172.26/x
  3. Step 3: Cross multiply
    28,919.22x = 39,908.24 × 16,172.26
  4. Step 4: Simplify right side
    28,919.22x = 645,406,404.41
  5. Step 5: Solve for x
    x = 645,406,404.41/28,919.22
  6. Step 6: Final answer
    x = 22,317.56

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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.