Home / 31,771.28-43,845.54-19,193.60

Finding the Fourth Proportional to 31,771.28, 43,845.54 and 19,193.60

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Solution

The fourth proportional to 31,771.28, 43,845.54 and 19,193.60 is: 26,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,771.28 : 43,845.54 = 19,193.60 : x
  2. Step 2: Convert to fraction form
    31,771.28/43,845.54 = 19,193.60/x
  3. Step 3: Cross multiply
    31,771.28x = 43,845.54 × 19,193.60
  4. Step 4: Simplify right side
    31,771.28x = 841,553,794.18
  5. Step 5: Solve for x
    x = 841,553,794.18/31,771.28
  6. Step 6: Final answer
    x = 26,487.88

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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.