Home / 22,219.49-30,663.37-13,265.32

Finding the Fourth Proportional to 22,219.49, 30,663.37 and 13,265.32

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Solution

The fourth proportional to 22,219.49, 30,663.37 and 13,265.32 is: 18,306.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,219.49 : 30,663.37 = 13,265.32 : x
  2. Step 2: Convert to fraction form
    22,219.49/30,663.37 = 13,265.32/x
  3. Step 3: Cross multiply
    22,219.49x = 30,663.37 × 13,265.32
  4. Step 4: Simplify right side
    22,219.49x = 406,759,415.33
  5. Step 5: Solve for x
    x = 406,759,415.33/22,219.49
  6. Step 6: Final answer
    x = 18,306.42

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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.