Home / 20,131.92-30,186.08-13,475.99

Finding the Fourth Proportional to 20,131.92, 30,186.08 and 13,475.99

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Solution

The fourth proportional to 20,131.92, 30,186.08 and 13,475.99 is: 20,206.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.92 : 30,186.08 = 13,475.99 : x
  2. Step 2: Convert to fraction form
    20,131.92/30,186.08 = 13,475.99/x
  3. Step 3: Cross multiply
    20,131.92x = 30,186.08 × 13,475.99
  4. Step 4: Simplify right side
    20,131.92x = 406,787,312.22
  5. Step 5: Solve for x
    x = 406,787,312.22/20,131.92
  6. Step 6: Final answer
    x = 20,206.09

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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.