Home / 39,198.28-54,094.10-21,293.58

Finding the Fourth Proportional to 39,198.28, 54,094.10 and 21,293.58

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Solution

The fourth proportional to 39,198.28, 54,094.10 and 21,293.58 is: 29,385.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198.28 : 54,094.10 = 21,293.58 : x
  2. Step 2: Convert to fraction form
    39,198.28/54,094.10 = 21,293.58/x
  3. Step 3: Cross multiply
    39,198.28x = 54,094.10 × 21,293.58
  4. Step 4: Simplify right side
    39,198.28x = 1,151,857,045.88
  5. Step 5: Solve for x
    x = 1,151,857,045.88/39,198.28
  6. Step 6: Final answer
    x = 29,385.40

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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.