Home / 21,393.41-29,523.87-11,961.98

Finding the Fourth Proportional to 21,393.41, 29,523.87 and 11,961.98

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Solution

The fourth proportional to 21,393.41, 29,523.87 and 11,961.98 is: 16,508.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393.41 : 29,523.87 = 11,961.98 : x
  2. Step 2: Convert to fraction form
    21,393.41/29,523.87 = 11,961.98/x
  3. Step 3: Cross multiply
    21,393.41x = 29,523.87 × 11,961.98
  4. Step 4: Simplify right side
    21,393.41x = 353,163,794.84
  5. Step 5: Solve for x
    x = 353,163,794.84/21,393.41
  6. Step 6: Final answer
    x = 16,508.07

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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.