Home / 33,642.78-46,375.65-21,690.83

Finding the Fourth Proportional to 33,642.78, 46,375.65 and 21,690.83

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Solution

The fourth proportional to 33,642.78, 46,375.65 and 21,690.83 is: 29,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,642.78 : 46,375.65 = 21,690.83 : x
  2. Step 2: Convert to fraction form
    33,642.78/46,375.65 = 21,690.83/x
  3. Step 3: Cross multiply
    33,642.78x = 46,375.65 × 21,690.83
  4. Step 4: Simplify right side
    33,642.78x = 1,005,926,108.41
  5. Step 5: Solve for x
    x = 1,005,926,108.41/33,642.78
  6. Step 6: Final answer
    x = 29,900.21

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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.