Home / 31,447.40-43,396.71-18,026.57

Finding the Fourth Proportional to 31,447.40, 43,396.71 and 18,026.57

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Solution

The fourth proportional to 31,447.40, 43,396.71 and 18,026.57 is: 24,876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,447.40 : 43,396.71 = 18,026.57 : x
  2. Step 2: Convert to fraction form
    31,447.40/43,396.71 = 18,026.57/x
  3. Step 3: Cross multiply
    31,447.40x = 43,396.71 × 18,026.57
  4. Step 4: Simplify right side
    31,447.40x = 782,293,613.60
  5. Step 5: Solve for x
    x = 782,293,613.60/31,447.40
  6. Step 6: Final answer
    x = 24,876.26

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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.