Home / 20,553.19-30,812.37-8,706.49

Finding the Fourth Proportional to 20,553.19, 30,812.37 and 8,706.49

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Solution

The fourth proportional to 20,553.19, 30,812.37 and 8,706.49 is: 13,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.19 : 30,812.37 = 8,706.49 : x
  2. Step 2: Convert to fraction form
    20,553.19/30,812.37 = 8,706.49/x
  3. Step 3: Cross multiply
    20,553.19x = 30,812.37 × 8,706.49
  4. Step 4: Simplify right side
    20,553.19x = 268,267,591.28
  5. Step 5: Solve for x
    x = 268,267,591.28/20,553.19
  6. Step 6: Final answer
    x = 13,052.36

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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.