Home / 20,241.40-27,944.98-12,799.48

Finding the Fourth Proportional to 20,241.40, 27,944.98 and 12,799.48

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Solution

The fourth proportional to 20,241.40, 27,944.98 and 12,799.48 is: 17,670.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.40 : 27,944.98 = 12,799.48 : x
  2. Step 2: Convert to fraction form
    20,241.40/27,944.98 = 12,799.48/x
  3. Step 3: Cross multiply
    20,241.40x = 27,944.98 × 12,799.48
  4. Step 4: Simplify right side
    20,241.40x = 357,681,212.61
  5. Step 5: Solve for x
    x = 357,681,212.61/20,241.40
  6. Step 6: Final answer
    x = 17,670.77

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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.