Home / 25,107.66-34,629.36-18,390.84

Finding the Fourth Proportional to 25,107.66, 34,629.36 and 18,390.84

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Solution

The fourth proportional to 25,107.66, 34,629.36 and 18,390.84 is: 25,365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,107.66 : 34,629.36 = 18,390.84 : x
  2. Step 2: Convert to fraction form
    25,107.66/34,629.36 = 18,390.84/x
  3. Step 3: Cross multiply
    25,107.66x = 34,629.36 × 18,390.84
  4. Step 4: Simplify right side
    25,107.66x = 636,863,019.06
  5. Step 5: Solve for x
    x = 636,863,019.06/25,107.66
  6. Step 6: Final answer
    x = 25,365.29

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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.