Home / 33,342.68-45,991.22-21,387.08

Finding the Fourth Proportional to 33,342.68, 45,991.22 and 21,387.08

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Solution

The fourth proportional to 33,342.68, 45,991.22 and 21,387.08 is: 29,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,342.68 : 45,991.22 = 21,387.08 : x
  2. Step 2: Convert to fraction form
    33,342.68/45,991.22 = 21,387.08/x
  3. Step 3: Cross multiply
    33,342.68x = 45,991.22 × 21,387.08
  4. Step 4: Simplify right side
    33,342.68x = 983,617,901.44
  5. Step 5: Solve for x
    x = 983,617,901.44/33,342.68
  6. Step 6: Final answer
    x = 29,500.27

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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.