Home / 20,713.26-31,011.99-11,191.46

Finding the Fourth Proportional to 20,713.26, 31,011.99 and 11,191.46

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Solution

The fourth proportional to 20,713.26, 31,011.99 and 11,191.46 is: 16,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.26 : 31,011.99 = 11,191.46 : x
  2. Step 2: Convert to fraction form
    20,713.26/31,011.99 = 11,191.46/x
  3. Step 3: Cross multiply
    20,713.26x = 31,011.99 × 11,191.46
  4. Step 4: Simplify right side
    20,713.26x = 347,069,389.65
  5. Step 5: Solve for x
    x = 347,069,389.65/20,713.26
  6. Step 6: Final answer
    x = 16,755.91

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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.