Home / 31,406.44-43,343.46-18,830.92

Finding the Fourth Proportional to 31,406.44, 43,343.46 and 18,830.92

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Solution

The fourth proportional to 31,406.44, 43,343.46 and 18,830.92 is: 25,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,406.44 : 43,343.46 = 18,830.92 : x
  2. Step 2: Convert to fraction form
    31,406.44/43,343.46 = 18,830.92/x
  3. Step 3: Cross multiply
    31,406.44x = 43,343.46 × 18,830.92
  4. Step 4: Simplify right side
    31,406.44x = 816,197,227.78
  5. Step 5: Solve for x
    x = 816,197,227.78/31,406.44
  6. Step 6: Final answer
    x = 25,988.21

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Double scale
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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.