Home / 21,243.63-31,865.44-10,116.58

Finding the Fourth Proportional to 21,243.63, 31,865.44 and 10,116.58

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Solution

The fourth proportional to 21,243.63, 31,865.44 and 10,116.58 is: 15,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243.63 : 31,865.44 = 10,116.58 : x
  2. Step 2: Convert to fraction form
    21,243.63/31,865.44 = 10,116.58/x
  3. Step 3: Cross multiply
    21,243.63x = 31,865.44 × 10,116.58
  4. Step 4: Simplify right side
    21,243.63x = 322,369,273.00
  5. Step 5: Solve for x
    x = 322,369,273.00/21,243.63
  6. Step 6: Final answer
    x = 15,174.87

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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.