Home / 18,929.36-25,933.37-18,219.96

Finding the Fourth Proportional to 18,929.36, 25,933.37 and 18,219.96

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Solution

The fourth proportional to 18,929.36, 25,933.37 and 18,219.96 is: 24,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.36 : 25,933.37 = 18,219.96 : x
  2. Step 2: Convert to fraction form
    18,929.36/25,933.37 = 18,219.96/x
  3. Step 3: Cross multiply
    18,929.36x = 25,933.37 × 18,219.96
  4. Step 4: Simplify right side
    18,929.36x = 472,504,964.07
  5. Step 5: Solve for x
    x = 472,504,964.07/18,929.36
  6. Step 6: Final answer
    x = 24,961.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.