Home / 27,692.16-38,175.20-19,731.36

Finding the Fourth Proportional to 27,692.16, 38,175.20 and 19,731.36

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Solution

The fourth proportional to 27,692.16, 38,175.20 and 19,731.36 is: 27,200.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,692.16 : 38,175.20 = 19,731.36 : x
  2. Step 2: Convert to fraction form
    27,692.16/38,175.20 = 19,731.36/x
  3. Step 3: Cross multiply
    27,692.16x = 38,175.20 × 19,731.36
  4. Step 4: Simplify right side
    27,692.16x = 753,248,614.27
  5. Step 5: Solve for x
    x = 753,248,614.27/27,692.16
  6. Step 6: Final answer
    x = 27,200.79

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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.