Home / 36,122.30-49,856.58-21,979.70

Finding the Fourth Proportional to 36,122.30, 49,856.58 and 21,979.70

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Solution

The fourth proportional to 36,122.30, 49,856.58 and 21,979.70 is: 30,336.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,122.30 : 49,856.58 = 21,979.70 : x
  2. Step 2: Convert to fraction form
    36,122.30/49,856.58 = 21,979.70/x
  3. Step 3: Cross multiply
    36,122.30x = 49,856.58 × 21,979.70
  4. Step 4: Simplify right side
    36,122.30x = 1,095,832,671.43
  5. Step 5: Solve for x
    x = 1,095,832,671.43/36,122.30
  6. Step 6: Final answer
    x = 30,336.74

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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.