Home / 20,591.10-28,394.49-17,616.78

Finding the Fourth Proportional to 20,591.10, 28,394.49 and 17,616.78

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Solution

The fourth proportional to 20,591.10, 28,394.49 and 17,616.78 is: 24,292.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.10 : 28,394.49 = 17,616.78 : x
  2. Step 2: Convert to fraction form
    20,591.10/28,394.49 = 17,616.78/x
  3. Step 3: Cross multiply
    20,591.10x = 28,394.49 × 17,616.78
  4. Step 4: Simplify right side
    20,591.10x = 500,219,483.54
  5. Step 5: Solve for x
    x = 500,219,483.54/20,591.10
  6. Step 6: Final answer
    x = 24,292.99

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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.