Home / 33,117.68-45,671.16-21,767.12

Finding the Fourth Proportional to 33,117.68, 45,671.16 and 21,767.12

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Solution

The fourth proportional to 33,117.68, 45,671.16 and 21,767.12 is: 30,018.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,117.68 : 45,671.16 = 21,767.12 : x
  2. Step 2: Convert to fraction form
    33,117.68/45,671.16 = 21,767.12/x
  3. Step 3: Cross multiply
    33,117.68x = 45,671.16 × 21,767.12
  4. Step 4: Simplify right side
    33,117.68x = 994,129,620.26
  5. Step 5: Solve for x
    x = 994,129,620.26/33,117.68
  6. Step 6: Final answer
    x = 30,018.09

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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.