Home / 19,844.80-27,380.23-12,775.32

Finding the Fourth Proportional to 19,844.80, 27,380.23 and 12,775.32

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Solution

The fourth proportional to 19,844.80, 27,380.23 and 12,775.32 is: 17,626.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,844.80 : 27,380.23 = 12,775.32 : x
  2. Step 2: Convert to fraction form
    19,844.80/27,380.23 = 12,775.32/x
  3. Step 3: Cross multiply
    19,844.80x = 27,380.23 × 12,775.32
  4. Step 4: Simplify right side
    19,844.80x = 349,791,167.99
  5. Step 5: Solve for x
    x = 349,791,167.99/19,844.80
  6. Step 6: Final answer
    x = 17,626.34

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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.