Home / 19,961.17-27,539.56-12,796.87

Finding the Fourth Proportional to 19,961.17, 27,539.56 and 12,796.87

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Solution

The fourth proportional to 19,961.17, 27,539.56 and 12,796.87 is: 17,655.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.17 : 27,539.56 = 12,796.87 : x
  2. Step 2: Convert to fraction form
    19,961.17/27,539.56 = 12,796.87/x
  3. Step 3: Cross multiply
    19,961.17x = 27,539.56 × 12,796.87
  4. Step 4: Simplify right side
    19,961.17x = 352,419,967.50
  5. Step 5: Solve for x
    x = 352,419,967.50/19,961.17
  6. Step 6: Final answer
    x = 17,655.28

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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.