Home / 47,721.30-71,606.25-19,662.90

Finding the Fourth Proportional to 47,721.30, 71,606.25 and 19,662.90

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Solution

The fourth proportional to 47,721.30, 71,606.25 and 19,662.90 is: 29,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,721.30 : 71,606.25 = 19,662.90 : x
  2. Step 2: Convert to fraction form
    47,721.30/71,606.25 = 19,662.90/x
  3. Step 3: Cross multiply
    47,721.30x = 71,606.25 × 19,662.90
  4. Step 4: Simplify right side
    47,721.30x = 1,407,986,533.13
  5. Step 5: Solve for x
    x = 1,407,986,533.13/47,721.30
  6. Step 6: Final answer
    x = 29,504.36

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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.