Home / 20,694.24-31,056.40-15,514.08

Finding the Fourth Proportional to 20,694.24, 31,056.40 and 15,514.08

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Solution

The fourth proportional to 20,694.24, 31,056.40 and 15,514.08 is: 23,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.24 : 31,056.40 = 15,514.08 : x
  2. Step 2: Convert to fraction form
    20,694.24/31,056.40 = 15,514.08/x
  3. Step 3: Cross multiply
    20,694.24x = 31,056.40 × 15,514.08
  4. Step 4: Simplify right side
    20,694.24x = 481,811,474.11
  5. Step 5: Solve for x
    x = 481,811,474.11/20,694.24
  6. Step 6: Final answer
    x = 23,282.40

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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.