Home / 22,220.06-30,665.81-13,267.49

Finding the Fourth Proportional to 22,220.06, 30,665.81 and 13,267.49

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Solution

The fourth proportional to 22,220.06, 30,665.81 and 13,267.49 is: 18,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,220.06 : 30,665.81 = 13,267.49 : x
  2. Step 2: Convert to fraction form
    22,220.06/30,665.81 = 13,267.49/x
  3. Step 3: Cross multiply
    22,220.06x = 30,665.81 × 13,267.49
  4. Step 4: Simplify right side
    22,220.06x = 406,858,207.36
  5. Step 5: Solve for x
    x = 406,858,207.36/22,220.06
  6. Step 6: Final answer
    x = 18,310.41

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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.