Home / 21,232.78-29,301.63-11,802.22

Finding the Fourth Proportional to 21,232.78, 29,301.63 and 11,802.22

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Solution

The fourth proportional to 21,232.78, 29,301.63 and 11,802.22 is: 16,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.78 : 29,301.63 = 11,802.22 : x
  2. Step 2: Convert to fraction form
    21,232.78/29,301.63 = 11,802.22/x
  3. Step 3: Cross multiply
    21,232.78x = 29,301.63 × 11,802.22
  4. Step 4: Simplify right side
    21,232.78x = 345,824,283.62
  5. Step 5: Solve for x
    x = 345,824,283.62/21,232.78
  6. Step 6: Final answer
    x = 16,287.28

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1.5x scale

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.