Home / 31,876.50-43,991.43-18,452.42

Finding the Fourth Proportional to 31,876.50, 43,991.43 and 18,452.42

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Solution

The fourth proportional to 31,876.50, 43,991.43 and 18,452.42 is: 25,465.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,876.50 : 43,991.43 = 18,452.42 : x
  2. Step 2: Convert to fraction form
    31,876.50/43,991.43 = 18,452.42/x
  3. Step 3: Cross multiply
    31,876.50x = 43,991.43 × 18,452.42
  4. Step 4: Simplify right side
    31,876.50x = 811,748,122.80
  5. Step 5: Solve for x
    x = 811,748,122.80/31,876.50
  6. Step 6: Final answer
    x = 25,465.41

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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.