Home / 39,829.56-54,962.89-21,924.19

Finding the Fourth Proportional to 39,829.56, 54,962.89 and 21,924.19

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Solution

The fourth proportional to 39,829.56, 54,962.89 and 21,924.19 is: 30,254.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,829.56 : 54,962.89 = 21,924.19 : x
  2. Step 2: Convert to fraction form
    39,829.56/54,962.89 = 21,924.19/x
  3. Step 3: Cross multiply
    39,829.56x = 54,962.89 × 21,924.19
  4. Step 4: Simplify right side
    39,829.56x = 1,205,016,843.31
  5. Step 5: Solve for x
    x = 1,205,016,843.31/39,829.56
  6. Step 6: Final answer
    x = 30,254.33

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Half scale
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Double scale
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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.