Home / 15,921.91-23,743.87-13,956.64

Finding the Fourth Proportional to 15,921.91, 23,743.87 and 13,956.64

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Solution

The fourth proportional to 15,921.91, 23,743.87 and 13,956.64 is: 20,813.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.91 : 23,743.87 = 13,956.64 : x
  2. Step 2: Convert to fraction form
    15,921.91/23,743.87 = 13,956.64/x
  3. Step 3: Cross multiply
    15,921.91x = 23,743.87 × 13,956.64
  4. Step 4: Simplify right side
    15,921.91x = 331,384,645.80
  5. Step 5: Solve for x
    x = 331,384,645.80/15,921.91
  6. Step 6: Final answer
    x = 20,813.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.