Home / 21,223.36-29,289.12-11,792

Finding the Fourth Proportional to 21,223.36, 29,289.12 and 11,792

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Solution

The fourth proportional to 21,223.36, 29,289.12 and 11,792 is: 16,273.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.36 : 29,289.12 = 11,792 : x
  2. Step 2: Convert to fraction form
    21,223.36/29,289.12 = 11,792/x
  3. Step 3: Cross multiply
    21,223.36x = 29,289.12 × 11,792
  4. Step 4: Simplify right side
    21,223.36x = 345,377,303.04
  5. Step 5: Solve for x
    x = 345,377,303.04/21,223.36
  6. Step 6: Final answer
    x = 16,273.45

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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.