Home / 31,617.11-43,580.94-21,404.93

Finding the Fourth Proportional to 31,617.11, 43,580.94 and 21,404.93

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Solution

The fourth proportional to 31,617.11, 43,580.94 and 21,404.93 is: 29,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,617.11 : 43,580.94 = 21,404.93 : x
  2. Step 2: Convert to fraction form
    31,617.11/43,580.94 = 21,404.93/x
  3. Step 3: Cross multiply
    31,617.11x = 43,580.94 × 21,404.93
  4. Step 4: Simplify right side
    31,617.11x = 932,846,752.13
  5. Step 5: Solve for x
    x = 932,846,752.13/31,617.11
  6. Step 6: Final answer
    x = 29,504.50

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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.