Home / 39,862.82-55,010.04-21,957.84

Finding the Fourth Proportional to 39,862.82, 55,010.04 and 21,957.84

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Solution

The fourth proportional to 39,862.82, 55,010.04 and 21,957.84 is: 30,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,862.82 : 55,010.04 = 21,957.84 : x
  2. Step 2: Convert to fraction form
    39,862.82/55,010.04 = 21,957.84/x
  3. Step 3: Cross multiply
    39,862.82x = 55,010.04 × 21,957.84
  4. Step 4: Simplify right side
    39,862.82x = 1,207,901,656.71
  5. Step 5: Solve for x
    x = 1,207,901,656.71/39,862.82
  6. Step 6: Final answer
    x = 30,301.46

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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.