Home / 39,196.23-54,090.90-21,291.09

Finding the Fourth Proportional to 39,196.23, 54,090.90 and 21,291.09

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Solution

The fourth proportional to 39,196.23, 54,090.90 and 21,291.09 is: 29,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,196.23 : 54,090.90 = 21,291.09 : x
  2. Step 2: Convert to fraction form
    39,196.23/54,090.90 = 21,291.09/x
  3. Step 3: Cross multiply
    39,196.23x = 54,090.90 × 21,291.09
  4. Step 4: Simplify right side
    39,196.23x = 1,151,654,220.08
  5. Step 5: Solve for x
    x = 1,151,654,220.08/39,196.23
  6. Step 6: Final answer
    x = 29,381.76

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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.