Home / 38,631.03-53,309.36-21,634.43

Finding the Fourth Proportional to 38,631.03, 53,309.36 and 21,634.43

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Solution

The fourth proportional to 38,631.03, 53,309.36 and 21,634.43 is: 29,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.03 : 53,309.36 = 21,634.43 : x
  2. Step 2: Convert to fraction form
    38,631.03/53,309.36 = 21,634.43/x
  3. Step 3: Cross multiply
    38,631.03x = 53,309.36 × 21,634.43
  4. Step 4: Simplify right side
    38,631.03x = 1,153,317,283.11
  5. Step 5: Solve for x
    x = 1,153,317,283.11/38,631.03
  6. Step 6: Final answer
    x = 29,854.69

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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.