Home / 21,185.07-29,232.27-11,753.70

Finding the Fourth Proportional to 21,185.07, 29,232.27 and 11,753.70

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Solution

The fourth proportional to 21,185.07, 29,232.27 and 11,753.70 is: 16,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.07 : 29,232.27 = 11,753.70 : x
  2. Step 2: Convert to fraction form
    21,185.07/29,232.27 = 11,753.70/x
  3. Step 3: Cross multiply
    21,185.07x = 29,232.27 × 11,753.70
  4. Step 4: Simplify right side
    21,185.07x = 343,587,331.90
  5. Step 5: Solve for x
    x = 343,587,331.90/21,185.07
  6. Step 6: Final answer
    x = 16,218.37

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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.