Home / 40,991.36-61,489.25-12,913.62

Finding the Fourth Proportional to 40,991.36, 61,489.25 and 12,913.62

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Solution

The fourth proportional to 40,991.36, 61,489.25 and 12,913.62 is: 19,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,991.36 : 61,489.25 = 12,913.62 : x
  2. Step 2: Convert to fraction form
    40,991.36/61,489.25 = 12,913.62/x
  3. Step 3: Cross multiply
    40,991.36x = 61,489.25 × 12,913.62
  4. Step 4: Simplify right side
    40,991.36x = 794,048,840.87
  5. Step 5: Solve for x
    x = 794,048,840.87/40,991.36
  6. Step 6: Final answer
    x = 19,371.13

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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.