Home / 19,203.17-28,781.75-12,542.84

Finding the Fourth Proportional to 19,203.17, 28,781.75 and 12,542.84

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Solution

The fourth proportional to 19,203.17, 28,781.75 and 12,542.84 is: 18,799.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,203.17 : 28,781.75 = 12,542.84 : x
  2. Step 2: Convert to fraction form
    19,203.17/28,781.75 = 12,542.84/x
  3. Step 3: Cross multiply
    19,203.17x = 28,781.75 × 12,542.84
  4. Step 4: Simplify right side
    19,203.17x = 361,004,772.62
  5. Step 5: Solve for x
    x = 361,004,772.62/19,203.17
  6. Step 6: Final answer
    x = 18,799.23

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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.