Home / 21,681.44-29,919.48-12,250.36

Finding the Fourth Proportional to 21,681.44, 29,919.48 and 12,250.36

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Solution

The fourth proportional to 21,681.44, 29,919.48 and 12,250.36 is: 16,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.44 : 29,919.48 = 12,250.36 : x
  2. Step 2: Convert to fraction form
    21,681.44/29,919.48 = 12,250.36/x
  3. Step 3: Cross multiply
    21,681.44x = 29,919.48 × 12,250.36
  4. Step 4: Simplify right side
    21,681.44x = 366,524,401.01
  5. Step 5: Solve for x
    x = 366,524,401.01/21,681.44
  6. Step 6: Final answer
    x = 16,904.98

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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.