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Finding the Fourth Proportional to 38,804, 53,536.08 and 21,805.92

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Solution

The fourth proportional to 38,804, 53,536.08 and 21,805.92 is: 30,084.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,804 : 53,536.08 = 21,805.92 : x
  2. Step 2: Convert to fraction form
    38,804/53,536.08 = 21,805.92/x
  3. Step 3: Cross multiply
    38,804x = 53,536.08 × 21,805.92
  4. Step 4: Simplify right side
    38,804x = 1,167,403,477.59
  5. Step 5: Solve for x
    x = 1,167,403,477.59/38,804
  6. Step 6: Final answer
    x = 30,084.62

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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.