Home / 25,969.37-38,986.35-18,121.80

Finding the Fourth Proportional to 25,969.37, 38,986.35 and 18,121.80

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Solution

The fourth proportional to 25,969.37, 38,986.35 and 18,121.80 is: 27,205.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,969.37 : 38,986.35 = 18,121.80 : x
  2. Step 2: Convert to fraction form
    25,969.37/38,986.35 = 18,121.80/x
  3. Step 3: Cross multiply
    25,969.37x = 38,986.35 × 18,121.80
  4. Step 4: Simplify right side
    25,969.37x = 706,502,882.47
  5. Step 5: Solve for x
    x = 706,502,882.47/25,969.37
  6. Step 6: Final answer
    x = 27,205.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.