Home / 40,391.46-60,548.31-21,657.78

Finding the Fourth Proportional to 40,391.46, 60,548.31 and 21,657.78

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Solution

The fourth proportional to 40,391.46, 60,548.31 and 21,657.78 is: 32,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,391.46 : 60,548.31 = 21,657.78 : x
  2. Step 2: Convert to fraction form
    40,391.46/60,548.31 = 21,657.78/x
  3. Step 3: Cross multiply
    40,391.46x = 60,548.31 × 21,657.78
  4. Step 4: Simplify right side
    40,391.46x = 1,311,341,977.35
  5. Step 5: Solve for x
    x = 1,311,341,977.35/40,391.46
  6. Step 6: Final answer
    x = 32,465.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.