Home / 39,994.16-55,192.32-27,912.20

Finding the Fourth Proportional to 39,994.16, 55,192.32 and 27,912.20

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Solution

The fourth proportional to 39,994.16, 55,192.32 and 27,912.20 is: 38,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,994.16 : 55,192.32 = 27,912.20 : x
  2. Step 2: Convert to fraction form
    39,994.16/55,192.32 = 27,912.20/x
  3. Step 3: Cross multiply
    39,994.16x = 55,192.32 × 27,912.20
  4. Step 4: Simplify right side
    39,994.16x = 1,540,538,798.34
  5. Step 5: Solve for x
    x = 1,540,538,798.34/39,994.16
  6. Step 6: Final answer
    x = 38,519.10

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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.