Home / 19,964.32-29,965-10,110.56

Finding the Fourth Proportional to 19,964.32, 29,965 and 10,110.56

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Solution

The fourth proportional to 19,964.32, 29,965 and 10,110.56 is: 15,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.32 : 29,965 = 10,110.56 : x
  2. Step 2: Convert to fraction form
    19,964.32/29,965 = 10,110.56/x
  3. Step 3: Cross multiply
    19,964.32x = 29,965 × 10,110.56
  4. Step 4: Simplify right side
    19,964.32x = 302,962,930.40
  5. Step 5: Solve for x
    x = 302,962,930.40/19,964.32
  6. Step 6: Final answer
    x = 15,175.22

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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.