Home / 21,633.70-29,854.48-12,202.86

Finding the Fourth Proportional to 21,633.70, 29,854.48 and 12,202.86

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Solution

The fourth proportional to 21,633.70, 29,854.48 and 12,202.86 is: 16,839.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,633.70 : 29,854.48 = 12,202.86 : x
  2. Step 2: Convert to fraction form
    21,633.70/29,854.48 = 12,202.86/x
  3. Step 3: Cross multiply
    21,633.70x = 29,854.48 × 12,202.86
  4. Step 4: Simplify right side
    21,633.70x = 364,310,039.81
  5. Step 5: Solve for x
    x = 364,310,039.81/21,633.70
  6. Step 6: Final answer
    x = 16,839.93

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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.