Home / 33,091.68-45,677.16-21,187.08

Finding the Fourth Proportional to 33,091.68, 45,677.16 and 21,187.08

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Solution

The fourth proportional to 33,091.68, 45,677.16 and 21,187.08 is: 29,244.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,091.68 : 45,677.16 = 21,187.08 : x
  2. Step 2: Convert to fraction form
    33,091.68/45,677.16 = 21,187.08/x
  3. Step 3: Cross multiply
    33,091.68x = 45,677.16 × 21,187.08
  4. Step 4: Simplify right side
    33,091.68x = 967,765,643.09
  5. Step 5: Solve for x
    x = 967,765,643.09/33,091.68
  6. Step 6: Final answer
    x = 29,244.98

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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.