Home / 20,564.20-30,846.30-18,101.80

Finding the Fourth Proportional to 20,564.20, 30,846.30 and 18,101.80

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Solution

The fourth proportional to 20,564.20, 30,846.30 and 18,101.80 is: 27,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564.20 : 30,846.30 = 18,101.80 : x
  2. Step 2: Convert to fraction form
    20,564.20/30,846.30 = 18,101.80/x
  3. Step 3: Cross multiply
    20,564.20x = 30,846.30 × 18,101.80
  4. Step 4: Simplify right side
    20,564.20x = 558,373,553.34
  5. Step 5: Solve for x
    x = 558,373,553.34/20,564.20
  6. Step 6: Final answer
    x = 27,152.70

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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.