Home / 31,241.60-43,101.28-19,909.04

Finding the Fourth Proportional to 31,241.60, 43,101.28 and 19,909.04

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Solution

The fourth proportional to 31,241.60, 43,101.28 and 19,909.04 is: 27,466.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,241.60 : 43,101.28 = 19,909.04 : x
  2. Step 2: Convert to fraction form
    31,241.60/43,101.28 = 19,909.04/x
  3. Step 3: Cross multiply
    31,241.60x = 43,101.28 × 19,909.04
  4. Step 4: Simplify right side
    31,241.60x = 858,105,107.57
  5. Step 5: Solve for x
    x = 858,105,107.57/31,241.60
  6. Step 6: Final answer
    x = 27,466.75

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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.