Home / 20,624.53-30,896.93-12,311.17

Finding the Fourth Proportional to 20,624.53, 30,896.93 and 12,311.17

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Solution

The fourth proportional to 20,624.53, 30,896.93 and 12,311.17 is: 18,442.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.53 : 30,896.93 = 12,311.17 : x
  2. Step 2: Convert to fraction form
    20,624.53/30,896.93 = 12,311.17/x
  3. Step 3: Cross multiply
    20,624.53x = 30,896.93 × 12,311.17
  4. Step 4: Simplify right side
    20,624.53x = 380,377,357.71
  5. Step 5: Solve for x
    x = 380,377,357.71/20,624.53
  6. Step 6: Final answer
    x = 18,442.96

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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.