Home / 39,594.46-54,640.37-21,690.11

Finding the Fourth Proportional to 39,594.46, 54,640.37 and 21,690.11

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Solution

The fourth proportional to 39,594.46, 54,640.37 and 21,690.11 is: 29,932.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,594.46 : 54,640.37 = 21,690.11 : x
  2. Step 2: Convert to fraction form
    39,594.46/54,640.37 = 21,690.11/x
  3. Step 3: Cross multiply
    39,594.46x = 54,640.37 × 21,690.11
  4. Step 4: Simplify right side
    39,594.46x = 1,185,155,608.63
  5. Step 5: Solve for x
    x = 1,185,155,608.63/39,594.46
  6. Step 6: Final answer
    x = 29,932.36

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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.