Home / 19,381.05-28,998.96-11,454.39

Finding the Fourth Proportional to 19,381.05, 28,998.96 and 11,454.39

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Solution

The fourth proportional to 19,381.05, 28,998.96 and 11,454.39 is: 17,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381.05 : 28,998.96 = 11,454.39 : x
  2. Step 2: Convert to fraction form
    19,381.05/28,998.96 = 11,454.39/x
  3. Step 3: Cross multiply
    19,381.05x = 28,998.96 × 11,454.39
  4. Step 4: Simplify right side
    19,381.05x = 332,165,397.43
  5. Step 5: Solve for x
    x = 332,165,397.43/19,381.05
  6. Step 6: Final answer
    x = 17,138.67

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1.5x scale

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.