Home / 22,001.22-30,361.84-11,929.72

Finding the Fourth Proportional to 22,001.22, 30,361.84 and 11,929.72

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Solution

The fourth proportional to 22,001.22, 30,361.84 and 11,929.72 is: 16,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.22 : 30,361.84 = 11,929.72 : x
  2. Step 2: Convert to fraction form
    22,001.22/30,361.84 = 11,929.72/x
  3. Step 3: Cross multiply
    22,001.22x = 30,361.84 × 11,929.72
  4. Step 4: Simplify right side
    22,001.22x = 362,208,249.88
  5. Step 5: Solve for x
    x = 362,208,249.88/22,001.22
  6. Step 6: Final answer
    x = 16,463.10

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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.