Home / 33,090.68-45,628.08-30,991.16

Finding the Fourth Proportional to 33,090.68, 45,628.08 and 30,991.16

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Solution

The fourth proportional to 33,090.68, 45,628.08 and 30,991.16 is: 42,733.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,090.68 : 45,628.08 = 30,991.16 : x
  2. Step 2: Convert to fraction form
    33,090.68/45,628.08 = 30,991.16/x
  3. Step 3: Cross multiply
    33,090.68x = 45,628.08 × 30,991.16
  4. Step 4: Simplify right side
    33,090.68x = 1,414,067,125.63
  5. Step 5: Solve for x
    x = 1,414,067,125.63/33,090.68
  6. Step 6: Final answer
    x = 42,733.09

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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.