Home / 39,364.73-54,321.31-21,457.97

Finding the Fourth Proportional to 39,364.73, 54,321.31 and 21,457.97

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Solution

The fourth proportional to 39,364.73, 54,321.31 and 21,457.97 is: 29,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,364.73 : 54,321.31 = 21,457.97 : x
  2. Step 2: Convert to fraction form
    39,364.73/54,321.31 = 21,457.97/x
  3. Step 3: Cross multiply
    39,364.73x = 54,321.31 × 21,457.97
  4. Step 4: Simplify right side
    39,364.73x = 1,165,625,040.34
  5. Step 5: Solve for x
    x = 1,165,625,040.34/39,364.73
  6. Step 6: Final answer
    x = 29,610.90

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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.