Home / 28,389.66-39,171.78-16,452.30

Finding the Fourth Proportional to 28,389.66, 39,171.78 and 16,452.30

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Solution

The fourth proportional to 28,389.66, 39,171.78 and 16,452.30 is: 22,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.66 : 39,171.78 = 16,452.30 : x
  2. Step 2: Convert to fraction form
    28,389.66/39,171.78 = 16,452.30/x
  3. Step 3: Cross multiply
    28,389.66x = 39,171.78 × 16,452.30
  4. Step 4: Simplify right side
    28,389.66x = 644,465,876.09
  5. Step 5: Solve for x
    x = 644,465,876.09/28,389.66
  6. Step 6: Final answer
    x = 22,700.73

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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.