Home / 39,196.36-54,091.07-21,291.22

Finding the Fourth Proportional to 39,196.36, 54,091.07 and 21,291.22

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Solution

The fourth proportional to 39,196.36, 54,091.07 and 21,291.22 is: 29,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,196.36 : 54,091.07 = 21,291.22 : x
  2. Step 2: Convert to fraction form
    39,196.36/54,091.07 = 21,291.22/x
  3. Step 3: Cross multiply
    39,196.36x = 54,091.07 × 21,291.22
  4. Step 4: Simplify right side
    39,196.36x = 1,151,664,871.41
  5. Step 5: Solve for x
    x = 1,151,664,871.41/39,196.36
  6. Step 6: Final answer
    x = 29,381.93

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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.