Home / 28,442.16-39,249.56-16,506.56

Finding the Fourth Proportional to 28,442.16, 39,249.56 and 16,506.56

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Solution

The fourth proportional to 28,442.16, 39,249.56 and 16,506.56 is: 22,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.16 : 39,249.56 = 16,506.56 : x
  2. Step 2: Convert to fraction form
    28,442.16/39,249.56 = 16,506.56/x
  3. Step 3: Cross multiply
    28,442.16x = 39,249.56 × 16,506.56
  4. Step 4: Simplify right side
    28,442.16x = 647,875,217.11
  5. Step 5: Solve for x
    x = 647,875,217.11/28,442.16
  6. Step 6: Final answer
    x = 22,778.69

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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.