Home / 22,001.45-30,361.81-12,443.22

Finding the Fourth Proportional to 22,001.45, 30,361.81 and 12,443.22

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Solution

The fourth proportional to 22,001.45, 30,361.81 and 12,443.22 is: 17,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.45 : 30,361.81 = 12,443.22 : x
  2. Step 2: Convert to fraction form
    22,001.45/30,361.81 = 12,443.22/x
  3. Step 3: Cross multiply
    22,001.45x = 30,361.81 × 12,443.22
  4. Step 4: Simplify right side
    22,001.45x = 377,798,681.43
  5. Step 5: Solve for x
    x = 377,798,681.43/22,001.45
  6. Step 6: Final answer
    x = 17,171.54

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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.