Home / 36,612.45-54,936.90-20,829.60

Finding the Fourth Proportional to 36,612.45, 54,936.90 and 20,829.60

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Solution

The fourth proportional to 36,612.45, 54,936.90 and 20,829.60 is: 31,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,612.45 : 54,936.90 = 20,829.60 : x
  2. Step 2: Convert to fraction form
    36,612.45/54,936.90 = 20,829.60/x
  3. Step 3: Cross multiply
    36,612.45x = 54,936.90 × 20,829.60
  4. Step 4: Simplify right side
    36,612.45x = 1,144,313,652.24
  5. Step 5: Solve for x
    x = 1,144,313,652.24/36,612.45
  6. Step 6: Final answer
    x = 31,254.77

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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.