Home / 21,026.89-29,016.73-11,953.88

Finding the Fourth Proportional to 21,026.89, 29,016.73 and 11,953.88

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Solution

The fourth proportional to 21,026.89, 29,016.73 and 11,953.88 is: 16,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026.89 : 29,016.73 = 11,953.88 : x
  2. Step 2: Convert to fraction form
    21,026.89/29,016.73 = 11,953.88/x
  3. Step 3: Cross multiply
    21,026.89x = 29,016.73 × 11,953.88
  4. Step 4: Simplify right side
    21,026.89x = 346,862,487.08
  5. Step 5: Solve for x
    x = 346,862,487.08/21,026.89
  6. Step 6: Final answer
    x = 16,496.14

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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.