Home / 22,161.42-33,242.04-21,603.69

Finding the Fourth Proportional to 22,161.42, 33,242.04 and 21,603.69

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Solution

The fourth proportional to 22,161.42, 33,242.04 and 21,603.69 is: 32,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.42 : 33,242.04 = 21,603.69 : x
  2. Step 2: Convert to fraction form
    22,161.42/33,242.04 = 21,603.69/x
  3. Step 3: Cross multiply
    22,161.42x = 33,242.04 × 21,603.69
  4. Step 4: Simplify right side
    22,161.42x = 718,150,727.13
  5. Step 5: Solve for x
    x = 718,150,727.13/22,161.42
  6. Step 6: Final answer
    x = 32,405.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.