Home / 36,255.31-54,380.76-21,557.75

Finding the Fourth Proportional to 36,255.31, 54,380.76 and 21,557.75

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Solution

The fourth proportional to 36,255.31, 54,380.76 and 21,557.75 is: 32,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,255.31 : 54,380.76 = 21,557.75 : x
  2. Step 2: Convert to fraction form
    36,255.31/54,380.76 = 21,557.75/x
  3. Step 3: Cross multiply
    36,255.31x = 54,380.76 × 21,557.75
  4. Step 4: Simplify right side
    36,255.31x = 1,172,326,828.89
  5. Step 5: Solve for x
    x = 1,172,326,828.89/36,255.31
  6. Step 6: Final answer
    x = 32,335.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.