Home / 33,309.76-45,955.50-21,379.66

Finding the Fourth Proportional to 33,309.76, 45,955.50 and 21,379.66

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Solution

The fourth proportional to 33,309.76, 45,955.50 and 21,379.66 is: 29,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,309.76 : 45,955.50 = 21,379.66 : x
  2. Step 2: Convert to fraction form
    33,309.76/45,955.50 = 21,379.66/x
  3. Step 3: Cross multiply
    33,309.76x = 45,955.50 × 21,379.66
  4. Step 4: Simplify right side
    33,309.76x = 982,512,965.13
  5. Step 5: Solve for x
    x = 982,512,965.13/33,309.76
  6. Step 6: Final answer
    x = 29,496.25

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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.