Home / 19,264.78-28,913.64-13,731.67

Finding the Fourth Proportional to 19,264.78, 28,913.64 and 13,731.67

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Solution

The fourth proportional to 19,264.78, 28,913.64 and 13,731.67 is: 20,609.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,264.78 : 28,913.64 = 13,731.67 : x
  2. Step 2: Convert to fraction form
    19,264.78/28,913.64 = 13,731.67/x
  3. Step 3: Cross multiply
    19,264.78x = 28,913.64 × 13,731.67
  4. Step 4: Simplify right side
    19,264.78x = 397,032,562.98
  5. Step 5: Solve for x
    x = 397,032,562.98/19,264.78
  6. Step 6: Final answer
    x = 20,609.24

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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.