Home / 40,812.16-61,213.92-13,108

Finding the Fourth Proportional to 40,812.16, 61,213.92 and 13,108

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Solution

The fourth proportional to 40,812.16, 61,213.92 and 13,108 is: 19,660.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,812.16 : 61,213.92 = 13,108 : x
  2. Step 2: Convert to fraction form
    40,812.16/61,213.92 = 13,108/x
  3. Step 3: Cross multiply
    40,812.16x = 61,213.92 × 13,108
  4. Step 4: Simplify right side
    40,812.16x = 802,392,063.36
  5. Step 5: Solve for x
    x = 802,392,063.36/40,812.16
  6. Step 6: Final answer
    x = 19,660.61

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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.