Home / 36,211.64-49,971.18-20,078.86

Finding the Fourth Proportional to 36,211.64, 49,971.18 and 20,078.86

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Solution

The fourth proportional to 36,211.64, 49,971.18 and 20,078.86 is: 27,708.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,211.64 : 49,971.18 = 20,078.86 : x
  2. Step 2: Convert to fraction form
    36,211.64/49,971.18 = 20,078.86/x
  3. Step 3: Cross multiply
    36,211.64x = 49,971.18 × 20,078.86
  4. Step 4: Simplify right side
    36,211.64x = 1,003,364,327.25
  5. Step 5: Solve for x
    x = 1,003,364,327.25/36,211.64
  6. Step 6: Final answer
    x = 27,708.34

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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.