Home / 40,840.46-61,231.89-15,859.70

Finding the Fourth Proportional to 40,840.46, 61,231.89 and 15,859.70

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Solution

The fourth proportional to 40,840.46, 61,231.89 and 15,859.70 is: 23,778.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,840.46 : 61,231.89 = 15,859.70 : x
  2. Step 2: Convert to fraction form
    40,840.46/61,231.89 = 15,859.70/x
  3. Step 3: Cross multiply
    40,840.46x = 61,231.89 × 15,859.70
  4. Step 4: Simplify right side
    40,840.46x = 971,119,405.83
  5. Step 5: Solve for x
    x = 971,119,405.83/40,840.46
  6. Step 6: Final answer
    x = 23,778.37

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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.