Home / 22,040-30,415.11-11,968.36

Finding the Fourth Proportional to 22,040, 30,415.11 and 11,968.36

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Solution

The fourth proportional to 22,040, 30,415.11 and 11,968.36 is: 16,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,040 : 30,415.11 = 11,968.36 : x
  2. Step 2: Convert to fraction form
    22,040/30,415.11 = 11,968.36/x
  3. Step 3: Cross multiply
    22,040x = 30,415.11 × 11,968.36
  4. Step 4: Simplify right side
    22,040x = 364,018,985.92
  5. Step 5: Solve for x
    x = 364,018,985.92/22,040
  6. Step 6: Final answer
    x = 16,516.29

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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.