Home / 20,586.17-28,405.67-11,974.26

Finding the Fourth Proportional to 20,586.17, 28,405.67 and 11,974.26

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Solution

The fourth proportional to 20,586.17, 28,405.67 and 11,974.26 is: 16,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.17 : 28,405.67 = 11,974.26 : x
  2. Step 2: Convert to fraction form
    20,586.17/28,405.67 = 11,974.26/x
  3. Step 3: Cross multiply
    20,586.17x = 28,405.67 × 11,974.26
  4. Step 4: Simplify right side
    20,586.17x = 340,136,765.96
  5. Step 5: Solve for x
    x = 340,136,765.96/20,586.17
  6. Step 6: Final answer
    x = 16,522.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.