Home / 20,212.26-30,321.63-8,527.20

Finding the Fourth Proportional to 20,212.26, 30,321.63 and 8,527.20

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Solution

The fourth proportional to 20,212.26, 30,321.63 and 8,527.20 is: 12,792.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.26 : 30,321.63 = 8,527.20 : x
  2. Step 2: Convert to fraction form
    20,212.26/30,321.63 = 8,527.20/x
  3. Step 3: Cross multiply
    20,212.26x = 30,321.63 × 8,527.20
  4. Step 4: Simplify right side
    20,212.26x = 258,558,603.34
  5. Step 5: Solve for x
    x = 258,558,603.34/20,212.26
  6. Step 6: Final answer
    x = 12,792.17

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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.