Home / 39,619.53-54,672.71-21,710.97

Finding the Fourth Proportional to 39,619.53, 54,672.71 and 21,710.97

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Solution

The fourth proportional to 39,619.53, 54,672.71 and 21,710.97 is: 29,959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619.53 : 54,672.71 = 21,710.97 : x
  2. Step 2: Convert to fraction form
    39,619.53/54,672.71 = 21,710.97/x
  3. Step 3: Cross multiply
    39,619.53x = 54,672.71 × 21,710.97
  4. Step 4: Simplify right side
    39,619.53x = 1,186,997,458.07
  5. Step 5: Solve for x
    x = 1,186,997,458.07/39,619.53
  6. Step 6: Final answer
    x = 29,959.91

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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.