Home / 39,003.75-53,825.31-21,098.84

Finding the Fourth Proportional to 39,003.75, 53,825.31 and 21,098.84

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Solution

The fourth proportional to 39,003.75, 53,825.31 and 21,098.84 is: 29,116.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,003.75 : 53,825.31 = 21,098.84 : x
  2. Step 2: Convert to fraction form
    39,003.75/53,825.31 = 21,098.84/x
  3. Step 3: Cross multiply
    39,003.75x = 53,825.31 × 21,098.84
  4. Step 4: Simplify right side
    39,003.75x = 1,135,651,334.51
  5. Step 5: Solve for x
    x = 1,135,651,334.51/39,003.75
  6. Step 6: Final answer
    x = 29,116.47

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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.