Home / 19,201.68-28,744.20-18,560.16

Finding the Fourth Proportional to 19,201.68, 28,744.20 and 18,560.16

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Solution

The fourth proportional to 19,201.68, 28,744.20 and 18,560.16 is: 27,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.68 : 28,744.20 = 18,560.16 : x
  2. Step 2: Convert to fraction form
    19,201.68/28,744.20 = 18,560.16/x
  3. Step 3: Cross multiply
    19,201.68x = 28,744.20 × 18,560.16
  4. Step 4: Simplify right side
    19,201.68x = 533,496,951.07
  5. Step 5: Solve for x
    x = 533,496,951.07/19,201.68
  6. Step 6: Final answer
    x = 27,783.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.