Home / 38,813.25-53,562.29-21,149.25

Finding the Fourth Proportional to 38,813.25, 53,562.29 and 21,149.25

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Solution

The fourth proportional to 38,813.25, 53,562.29 and 21,149.25 is: 29,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,813.25 : 53,562.29 = 21,149.25 : x
  2. Step 2: Convert to fraction form
    38,813.25/53,562.29 = 21,149.25/x
  3. Step 3: Cross multiply
    38,813.25x = 53,562.29 × 21,149.25
  4. Step 4: Simplify right side
    38,813.25x = 1,132,802,261.78
  5. Step 5: Solve for x
    x = 1,132,802,261.78/38,813.25
  6. Step 6: Final answer
    x = 29,185.97

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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.