Home / 40,690.21-56,149.72-22,540.31

Finding the Fourth Proportional to 40,690.21, 56,149.72 and 22,540.31

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Solution

The fourth proportional to 40,690.21, 56,149.72 and 22,540.31 is: 31,104.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,690.21 : 56,149.72 = 22,540.31 : x
  2. Step 2: Convert to fraction form
    40,690.21/56,149.72 = 22,540.31/x
  3. Step 3: Cross multiply
    40,690.21x = 56,149.72 × 22,540.31
  4. Step 4: Simplify right side
    40,690.21x = 1,265,632,095.21
  5. Step 5: Solve for x
    x = 1,265,632,095.21/40,690.21
  6. Step 6: Final answer
    x = 31,104.09

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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.