Home / 40,025.46-55,235.31-21,876.55

Finding the Fourth Proportional to 40,025.46, 55,235.31 and 21,876.55

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Solution

The fourth proportional to 40,025.46, 55,235.31 and 21,876.55 is: 30,189.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025.46 : 55,235.31 = 21,876.55 : x
  2. Step 2: Convert to fraction form
    40,025.46/55,235.31 = 21,876.55/x
  3. Step 3: Cross multiply
    40,025.46x = 55,235.31 × 21,876.55
  4. Step 4: Simplify right side
    40,025.46x = 1,208,358,020.98
  5. Step 5: Solve for x
    x = 1,208,358,020.98/40,025.46
  6. Step 6: Final answer
    x = 30,189.73

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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.