Home / 20,087.24-30,136.76-8,991.46

Finding the Fourth Proportional to 20,087.24, 30,136.76 and 8,991.46

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Solution

The fourth proportional to 20,087.24, 30,136.76 and 8,991.46 is: 13,489.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.24 : 30,136.76 = 8,991.46 : x
  2. Step 2: Convert to fraction form
    20,087.24/30,136.76 = 8,991.46/x
  3. Step 3: Cross multiply
    20,087.24x = 30,136.76 × 8,991.46
  4. Step 4: Simplify right side
    20,087.24x = 270,973,427.11
  5. Step 5: Solve for x
    x = 270,973,427.11/20,087.24
  6. Step 6: Final answer
    x = 13,489.83

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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.