Home / 19,930.62-27,497.07-13,219.50

Finding the Fourth Proportional to 19,930.62, 27,497.07 and 13,219.50

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Solution

The fourth proportional to 19,930.62, 27,497.07 and 13,219.50 is: 18,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.62 : 27,497.07 = 13,219.50 : x
  2. Step 2: Convert to fraction form
    19,930.62/27,497.07 = 13,219.50/x
  3. Step 3: Cross multiply
    19,930.62x = 27,497.07 × 13,219.50
  4. Step 4: Simplify right side
    19,930.62x = 363,497,516.87
  5. Step 5: Solve for x
    x = 363,497,516.87/19,930.62
  6. Step 6: Final answer
    x = 18,238.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.