Home / 21,553.29-29,743.47-11,993.13

Finding the Fourth Proportional to 21,553.29, 29,743.47 and 11,993.13

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Solution

The fourth proportional to 21,553.29, 29,743.47 and 11,993.13 is: 16,550.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553.29 : 29,743.47 = 11,993.13 : x
  2. Step 2: Convert to fraction form
    21,553.29/29,743.47 = 11,993.13/x
  3. Step 3: Cross multiply
    21,553.29x = 29,743.47 × 11,993.13
  4. Step 4: Simplify right side
    21,553.29x = 356,717,302.36
  5. Step 5: Solve for x
    x = 356,717,302.36/21,553.29
  6. Step 6: Final answer
    x = 16,550.48

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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.