Home / 36,326.10-50,131.80-20,415.54

Finding the Fourth Proportional to 36,326.10, 50,131.80 and 20,415.54

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Solution

The fourth proportional to 36,326.10, 50,131.80 and 20,415.54 is: 28,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,326.10 : 50,131.80 = 20,415.54 : x
  2. Step 2: Convert to fraction form
    36,326.10/50,131.80 = 20,415.54/x
  3. Step 3: Cross multiply
    36,326.10x = 50,131.80 × 20,415.54
  4. Step 4: Simplify right side
    36,326.10x = 1,023,467,768.17
  5. Step 5: Solve for x
    x = 1,023,467,768.17/36,326.10
  6. Step 6: Final answer
    x = 28,174.45

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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.