Home / 20,986.92-31,519.26-16,632.36

Finding the Fourth Proportional to 20,986.92, 31,519.26 and 16,632.36

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Solution

The fourth proportional to 20,986.92, 31,519.26 and 16,632.36 is: 24,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986.92 : 31,519.26 = 16,632.36 : x
  2. Step 2: Convert to fraction form
    20,986.92/31,519.26 = 16,632.36/x
  3. Step 3: Cross multiply
    20,986.92x = 31,519.26 × 16,632.36
  4. Step 4: Simplify right side
    20,986.92x = 524,239,679.25
  5. Step 5: Solve for x
    x = 524,239,679.25/20,986.92
  6. Step 6: Final answer
    x = 24,979.35

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1.5x scale

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.