Home / 28,078.11-38,743.21-16,591.42

Finding the Fourth Proportional to 28,078.11, 38,743.21 and 16,591.42

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Solution

The fourth proportional to 28,078.11, 38,743.21 and 16,591.42 is: 22,893.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.11 : 38,743.21 = 16,591.42 : x
  2. Step 2: Convert to fraction form
    28,078.11/38,743.21 = 16,591.42/x
  3. Step 3: Cross multiply
    28,078.11x = 38,743.21 × 16,591.42
  4. Step 4: Simplify right side
    28,078.11x = 642,804,938.43
  5. Step 5: Solve for x
    x = 642,804,938.43/28,078.11
  6. Step 6: Final answer
    x = 22,893.45

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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.