Home / 39,196.28-54,090.92-21,291.28

Finding the Fourth Proportional to 39,196.28, 54,090.92 and 21,291.28

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Solution

The fourth proportional to 39,196.28, 54,090.92 and 21,291.28 is: 29,382.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,196.28 : 54,090.92 = 21,291.28 : x
  2. Step 2: Convert to fraction form
    39,196.28/54,090.92 = 21,291.28/x
  3. Step 3: Cross multiply
    39,196.28x = 54,090.92 × 21,291.28
  4. Step 4: Simplify right side
    39,196.28x = 1,151,664,816.72
  5. Step 5: Solve for x
    x = 1,151,664,816.72/39,196.28
  6. Step 6: Final answer
    x = 29,382.00

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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.