Home / 39,546.81-54,574.59-21,641.81

Finding the Fourth Proportional to 39,546.81, 54,574.59 and 21,641.81

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Solution

The fourth proportional to 39,546.81, 54,574.59 and 21,641.81 is: 29,865.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,546.81 : 54,574.59 = 21,641.81 : x
  2. Step 2: Convert to fraction form
    39,546.81/54,574.59 = 21,641.81/x
  3. Step 3: Cross multiply
    39,546.81x = 54,574.59 × 21,641.81
  4. Step 4: Simplify right side
    39,546.81x = 1,181,092,634.73
  5. Step 5: Solve for x
    x = 1,181,092,634.73/39,546.81
  6. Step 6: Final answer
    x = 29,865.69

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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.