Home / 21,233.72-29,301.81-11,802.08

Finding the Fourth Proportional to 21,233.72, 29,301.81 and 11,802.08

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Solution

The fourth proportional to 21,233.72, 29,301.81 and 11,802.08 is: 16,286.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.72 : 29,301.81 = 11,802.08 : x
  2. Step 2: Convert to fraction form
    21,233.72/29,301.81 = 11,802.08/x
  3. Step 3: Cross multiply
    21,233.72x = 29,301.81 × 11,802.08
  4. Step 4: Simplify right side
    21,233.72x = 345,822,159.26
  5. Step 5: Solve for x
    x = 345,822,159.26/21,233.72
  6. Step 6: Final answer
    x = 16,286.47

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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.