Home / 36,221.19-49,985.15-20,305.64

Finding the Fourth Proportional to 36,221.19, 49,985.15 and 20,305.64

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Solution

The fourth proportional to 36,221.19, 49,985.15 and 20,305.64 is: 28,021.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,221.19 : 49,985.15 = 20,305.64 : x
  2. Step 2: Convert to fraction form
    36,221.19/49,985.15 = 20,305.64/x
  3. Step 3: Cross multiply
    36,221.19x = 49,985.15 × 20,305.64
  4. Step 4: Simplify right side
    36,221.19x = 1,014,980,109.79
  5. Step 5: Solve for x
    x = 1,014,980,109.79/36,221.19
  6. Step 6: Final answer
    x = 28,021.72

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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.