Home / 18,377.80-25,323.78-15,202.60

Finding the Fourth Proportional to 18,377.80, 25,323.78 and 15,202.60

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Solution

The fourth proportional to 18,377.80, 25,323.78 and 15,202.60 is: 20,948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.80 : 25,323.78 = 15,202.60 : x
  2. Step 2: Convert to fraction form
    18,377.80/25,323.78 = 15,202.60/x
  3. Step 3: Cross multiply
    18,377.80x = 25,323.78 × 15,202.60
  4. Step 4: Simplify right side
    18,377.80x = 384,987,297.83
  5. Step 5: Solve for x
    x = 384,987,297.83/18,377.80
  6. Step 6: Final answer
    x = 20,948.50

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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.