Home / 40,956.09-61,397.60-15,990.36

Finding the Fourth Proportional to 40,956.09, 61,397.60 and 15,990.36

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Solution

The fourth proportional to 40,956.09, 61,397.60 and 15,990.36 is: 23,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,956.09 : 61,397.60 = 15,990.36 : x
  2. Step 2: Convert to fraction form
    40,956.09/61,397.60 = 15,990.36/x
  3. Step 3: Cross multiply
    40,956.09x = 61,397.60 × 15,990.36
  4. Step 4: Simplify right side
    40,956.09x = 981,769,647.18
  5. Step 5: Solve for x
    x = 981,769,647.18/40,956.09
  6. Step 6: Final answer
    x = 23,971.27

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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.