Home / 36,336.45-50,145.57-20,420.58

Finding the Fourth Proportional to 36,336.45, 50,145.57 and 20,420.58

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Solution

The fourth proportional to 36,336.45, 50,145.57 and 20,420.58 is: 28,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,336.45 : 50,145.57 = 20,420.58 : x
  2. Step 2: Convert to fraction form
    36,336.45/50,145.57 = 20,420.58/x
  3. Step 3: Cross multiply
    36,336.45x = 50,145.57 × 20,420.58
  4. Step 4: Simplify right side
    36,336.45x = 1,024,001,623.83
  5. Step 5: Solve for x
    x = 1,024,001,623.83/36,336.45
  6. Step 6: Final answer
    x = 28,181.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.