Home / 19,152.20-28,542.78-18,155.75

Finding the Fourth Proportional to 19,152.20, 28,542.78 and 18,155.75

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Solution

The fourth proportional to 19,152.20, 28,542.78 and 18,155.75 is: 27,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152.20 : 28,542.78 = 18,155.75 : x
  2. Step 2: Convert to fraction form
    19,152.20/28,542.78 = 18,155.75/x
  3. Step 3: Cross multiply
    19,152.20x = 28,542.78 × 18,155.75
  4. Step 4: Simplify right side
    19,152.20x = 518,215,577.99
  5. Step 5: Solve for x
    x = 518,215,577.99/19,152.20
  6. Step 6: Final answer
    x = 27,057.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.