Home / 22,991.88-31,732.98-13,560.84

Finding the Fourth Proportional to 22,991.88, 31,732.98 and 13,560.84

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Solution

The fourth proportional to 22,991.88, 31,732.98 and 13,560.84 is: 18,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.88 : 31,732.98 = 13,560.84 : x
  2. Step 2: Convert to fraction form
    22,991.88/31,732.98 = 13,560.84/x
  3. Step 3: Cross multiply
    22,991.88x = 31,732.98 × 13,560.84
  4. Step 4: Simplify right side
    22,991.88x = 430,325,864.50
  5. Step 5: Solve for x
    x = 430,325,864.50/22,991.88
  6. Step 6: Final answer
    x = 18,716.43

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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.