Home / 33,003.69-45,533.10-21,679.32

Finding the Fourth Proportional to 33,003.69, 45,533.10 and 21,679.32

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Solution

The fourth proportional to 33,003.69, 45,533.10 and 21,679.32 is: 29,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,003.69 : 45,533.10 = 21,679.32 : x
  2. Step 2: Convert to fraction form
    33,003.69/45,533.10 = 21,679.32/x
  3. Step 3: Cross multiply
    33,003.69x = 45,533.10 × 21,679.32
  4. Step 4: Simplify right side
    33,003.69x = 987,126,645.49
  5. Step 5: Solve for x
    x = 987,126,645.49/33,003.69
  6. Step 6: Final answer
    x = 29,909.58

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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.