Home / 39,453.66-54,445.65-21,548.61

Finding the Fourth Proportional to 39,453.66, 54,445.65 and 21,548.61

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Solution

The fourth proportional to 39,453.66, 54,445.65 and 21,548.61 is: 29,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,453.66 : 54,445.65 = 21,548.61 : x
  2. Step 2: Convert to fraction form
    39,453.66/54,445.65 = 21,548.61/x
  3. Step 3: Cross multiply
    39,453.66x = 54,445.65 × 21,548.61
  4. Step 4: Simplify right side
    39,453.66x = 1,173,228,078.05
  5. Step 5: Solve for x
    x = 1,173,228,078.05/39,453.66
  6. Step 6: Final answer
    x = 29,736.86

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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.