Home / 33,318.68-45,979.74-18,211.44

Finding the Fourth Proportional to 33,318.68, 45,979.74 and 18,211.44

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Solution

The fourth proportional to 33,318.68, 45,979.74 and 18,211.44 is: 25,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,318.68 : 45,979.74 = 18,211.44 : x
  2. Step 2: Convert to fraction form
    33,318.68/45,979.74 = 18,211.44/x
  3. Step 3: Cross multiply
    33,318.68x = 45,979.74 × 18,211.44
  4. Step 4: Simplify right side
    33,318.68x = 837,357,276.23
  5. Step 5: Solve for x
    x = 837,357,276.23/33,318.68
  6. Step 6: Final answer
    x = 25,131.77

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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.