Home / 25,565.54-38,297.25-20,309.45

Finding the Fourth Proportional to 25,565.54, 38,297.25 and 20,309.45

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Solution

The fourth proportional to 25,565.54, 38,297.25 and 20,309.45 is: 30,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.54 : 38,297.25 = 20,309.45 : x
  2. Step 2: Convert to fraction form
    25,565.54/38,297.25 = 20,309.45/x
  3. Step 3: Cross multiply
    25,565.54x = 38,297.25 × 20,309.45
  4. Step 4: Simplify right side
    25,565.54x = 777,796,084.01
  5. Step 5: Solve for x
    x = 777,796,084.01/25,565.54
  6. Step 6: Final answer
    x = 30,423.61

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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.