Home / 36,311.40-50,108.72-20,178.28

Finding the Fourth Proportional to 36,311.40, 50,108.72 and 20,178.28

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Solution

The fourth proportional to 36,311.40, 50,108.72 and 20,178.28 is: 27,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,311.40 : 50,108.72 = 20,178.28 : x
  2. Step 2: Convert to fraction form
    36,311.40/50,108.72 = 20,178.28/x
  3. Step 3: Cross multiply
    36,311.40x = 50,108.72 × 20,178.28
  4. Step 4: Simplify right side
    36,311.40x = 1,011,107,782.60
  5. Step 5: Solve for x
    x = 1,011,107,782.60/36,311.40
  6. Step 6: Final answer
    x = 27,845.46

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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.