Home / 38,871.36-53,637.12-21,876.48

Finding the Fourth Proportional to 38,871.36, 53,637.12 and 21,876.48

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Solution

The fourth proportional to 38,871.36, 53,637.12 and 21,876.48 is: 30,186.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,871.36 : 53,637.12 = 21,876.48 : x
  2. Step 2: Convert to fraction form
    38,871.36/53,637.12 = 21,876.48/x
  3. Step 3: Cross multiply
    38,871.36x = 53,637.12 × 21,876.48
  4. Step 4: Simplify right side
    38,871.36x = 1,173,391,382.94
  5. Step 5: Solve for x
    x = 1,173,391,382.94/38,871.36
  6. Step 6: Final answer
    x = 30,186.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.