Home / 33,140.92-45,733.98-19,718.68

Finding the Fourth Proportional to 33,140.92, 45,733.98 and 19,718.68

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Solution

The fourth proportional to 33,140.92, 45,733.98 and 19,718.68 is: 27,211.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,140.92 : 45,733.98 = 19,718.68 : x
  2. Step 2: Convert to fraction form
    33,140.92/45,733.98 = 19,718.68/x
  3. Step 3: Cross multiply
    33,140.92x = 45,733.98 × 19,718.68
  4. Step 4: Simplify right side
    33,140.92x = 901,813,716.75
  5. Step 5: Solve for x
    x = 901,813,716.75/33,140.92
  6. Step 6: Final answer
    x = 27,211.49

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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.