Home / 19,965.45-27,534.83-15,985.11

Finding the Fourth Proportional to 19,965.45, 27,534.83 and 15,985.11

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Solution

The fourth proportional to 19,965.45, 27,534.83 and 15,985.11 is: 22,045.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.45 : 27,534.83 = 15,985.11 : x
  2. Step 2: Convert to fraction form
    19,965.45/27,534.83 = 15,985.11/x
  3. Step 3: Cross multiply
    19,965.45x = 27,534.83 × 15,985.11
  4. Step 4: Simplify right side
    19,965.45x = 440,147,206.46
  5. Step 5: Solve for x
    x = 440,147,206.46/19,965.45
  6. Step 6: Final answer
    x = 22,045.44

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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.