Home / 47,510.48-71,243.76-21,215.36

Finding the Fourth Proportional to 47,510.48, 71,243.76 and 21,215.36

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Solution

The fourth proportional to 47,510.48, 71,243.76 and 21,215.36 is: 31,813.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,510.48 : 71,243.76 = 21,215.36 : x
  2. Step 2: Convert to fraction form
    47,510.48/71,243.76 = 21,215.36/x
  3. Step 3: Cross multiply
    47,510.48x = 71,243.76 × 21,215.36
  4. Step 4: Simplify right side
    47,510.48x = 1,511,462,016.15
  5. Step 5: Solve for x
    x = 1,511,462,016.15/47,510.48
  6. Step 6: Final answer
    x = 31,813.23

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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.