Home / 28,391.90-39,172.16-16,452.94

Finding the Fourth Proportional to 28,391.90, 39,172.16 and 16,452.94

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Solution

The fourth proportional to 28,391.90, 39,172.16 and 16,452.94 is: 22,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,391.90 : 39,172.16 = 16,452.94 : x
  2. Step 2: Convert to fraction form
    28,391.90/39,172.16 = 16,452.94/x
  3. Step 3: Cross multiply
    28,391.90x = 39,172.16 × 16,452.94
  4. Step 4: Simplify right side
    28,391.90x = 644,497,198.15
  5. Step 5: Solve for x
    x = 644,497,198.15/28,391.90
  6. Step 6: Final answer
    x = 22,700.04

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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.