Home / 39,638.30-54,660.02-27,697.28

Finding the Fourth Proportional to 39,638.30, 54,660.02 and 27,697.28

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Solution

The fourth proportional to 39,638.30, 54,660.02 and 27,697.28 is: 38,193.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,638.30 : 54,660.02 = 27,697.28 : x
  2. Step 2: Convert to fraction form
    39,638.30/54,660.02 = 27,697.28/x
  3. Step 3: Cross multiply
    39,638.30x = 54,660.02 × 27,697.28
  4. Step 4: Simplify right side
    39,638.30x = 1,513,933,878.75
  5. Step 5: Solve for x
    x = 1,513,933,878.75/39,638.30
  6. Step 6: Final answer
    x = 38,193.71

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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.