Home / 47,707.25-71,481.29-21,013.52

Finding the Fourth Proportional to 47,707.25, 71,481.29 and 21,013.52

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Solution

The fourth proportional to 47,707.25, 71,481.29 and 21,013.52 is: 31,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,707.25 : 71,481.29 = 21,013.52 : x
  2. Step 2: Convert to fraction form
    47,707.25/71,481.29 = 21,013.52/x
  3. Step 3: Cross multiply
    47,707.25x = 71,481.29 × 21,013.52
  4. Step 4: Simplify right side
    47,707.25x = 1,502,073,054.57
  5. Step 5: Solve for x
    x = 1,502,073,054.57/47,707.25
  6. Step 6: Final answer
    x = 31,485.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.