Home / 31,661.16-43,892.20-29,975.82

Finding the Fourth Proportional to 31,661.16, 43,892.20 and 29,975.82

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Solution

The fourth proportional to 31,661.16, 43,892.20 and 29,975.82 is: 41,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,661.16 : 43,892.20 = 29,975.82 : x
  2. Step 2: Convert to fraction form
    31,661.16/43,892.20 = 29,975.82/x
  3. Step 3: Cross multiply
    31,661.16x = 43,892.20 × 29,975.82
  4. Step 4: Simplify right side
    31,661.16x = 1,315,704,686.60
  5. Step 5: Solve for x
    x = 1,315,704,686.60/31,661.16
  6. Step 6: Final answer
    x = 41,555.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.