Home / 36,821.49-55,239.11-20,172.34

Finding the Fourth Proportional to 36,821.49, 55,239.11 and 20,172.34

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Solution

The fourth proportional to 36,821.49, 55,239.11 and 20,172.34 is: 30,262.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,821.49 : 55,239.11 = 20,172.34 : x
  2. Step 2: Convert to fraction form
    36,821.49/55,239.11 = 20,172.34/x
  3. Step 3: Cross multiply
    36,821.49x = 55,239.11 × 20,172.34
  4. Step 4: Simplify right side
    36,821.49x = 1,114,302,108.22
  5. Step 5: Solve for x
    x = 1,114,302,108.22/36,821.49
  6. Step 6: Final answer
    x = 30,262.28

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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.