Home / 19,291.96-28,942.72-13,731.51

Finding the Fourth Proportional to 19,291.96, 28,942.72 and 13,731.51

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Solution

The fourth proportional to 19,291.96, 28,942.72 and 13,731.51 is: 20,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.96 : 28,942.72 = 13,731.51 : x
  2. Step 2: Convert to fraction form
    19,291.96/28,942.72 = 13,731.51/x
  3. Step 3: Cross multiply
    19,291.96x = 28,942.72 × 13,731.51
  4. Step 4: Simplify right side
    19,291.96x = 397,427,249.11
  5. Step 5: Solve for x
    x = 397,427,249.11/19,291.96
  6. Step 6: Final answer
    x = 20,600.67

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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.