Home / 36,071.64-49,784.31-21,921.75

Finding the Fourth Proportional to 36,071.64, 49,784.31 and 21,921.75

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Solution

The fourth proportional to 36,071.64, 49,784.31 and 21,921.75 is: 30,255.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,071.64 : 49,784.31 = 21,921.75 : x
  2. Step 2: Convert to fraction form
    36,071.64/49,784.31 = 21,921.75/x
  3. Step 3: Cross multiply
    36,071.64x = 49,784.31 × 21,921.75
  4. Step 4: Simplify right side
    36,071.64x = 1,091,359,197.74
  5. Step 5: Solve for x
    x = 1,091,359,197.74/36,071.64
  6. Step 6: Final answer
    x = 30,255.33

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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.