Home / 21,188.66-29,240.61-11,758.10

Finding the Fourth Proportional to 21,188.66, 29,240.61 and 11,758.10

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Solution

The fourth proportional to 21,188.66, 29,240.61 and 11,758.10 is: 16,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.66 : 29,240.61 = 11,758.10 : x
  2. Step 2: Convert to fraction form
    21,188.66/29,240.61 = 11,758.10/x
  3. Step 3: Cross multiply
    21,188.66x = 29,240.61 × 11,758.10
  4. Step 4: Simplify right side
    21,188.66x = 343,814,016.44
  5. Step 5: Solve for x
    x = 343,814,016.44/21,188.66
  6. Step 6: Final answer
    x = 16,226.32

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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.