Home / 40,682.39-56,135.23-22,778.15

Finding the Fourth Proportional to 40,682.39, 56,135.23 and 22,778.15

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Solution

The fourth proportional to 40,682.39, 56,135.23 and 22,778.15 is: 31,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,682.39 : 56,135.23 = 22,778.15 : x
  2. Step 2: Convert to fraction form
    40,682.39/56,135.23 = 22,778.15/x
  3. Step 3: Cross multiply
    40,682.39x = 56,135.23 × 22,778.15
  4. Step 4: Simplify right side
    40,682.39x = 1,278,656,351.60
  5. Step 5: Solve for x
    x = 1,278,656,351.60/40,682.39
  6. Step 6: Final answer
    x = 31,430.22

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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.