Home / 19,966.45-27,536.20-15,986.11

Finding the Fourth Proportional to 19,966.45, 27,536.20 and 15,986.11

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Solution

The fourth proportional to 19,966.45, 27,536.20 and 15,986.11 is: 22,046.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.45 : 27,536.20 = 15,986.11 : x
  2. Step 2: Convert to fraction form
    19,966.45/27,536.20 = 15,986.11/x
  3. Step 3: Cross multiply
    19,966.45x = 27,536.20 × 15,986.11
  4. Step 4: Simplify right side
    19,966.45x = 440,196,722.18
  5. Step 5: Solve for x
    x = 440,196,722.18/19,966.45
  6. Step 6: Final answer
    x = 22,046.82

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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.