Home / 19,444-29,138.66-11,111.53

Finding the Fourth Proportional to 19,444, 29,138.66 and 11,111.53

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Solution

The fourth proportional to 19,444, 29,138.66 and 11,111.53 is: 16,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,444 : 29,138.66 = 11,111.53 : x
  2. Step 2: Convert to fraction form
    19,444/29,138.66 = 11,111.53/x
  3. Step 3: Cross multiply
    19,444x = 29,138.66 × 11,111.53
  4. Step 4: Simplify right side
    19,444x = 323,775,094.75
  5. Step 5: Solve for x
    x = 323,775,094.75/19,444
  6. Step 6: Final answer
    x = 16,651.67

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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.