Home / 25,287.36-37,912.31-12,127.20

Finding the Fourth Proportional to 25,287.36, 37,912.31 and 12,127.20

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Solution

The fourth proportional to 25,287.36, 37,912.31 and 12,127.20 is: 18,181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,287.36 : 37,912.31 = 12,127.20 : x
  2. Step 2: Convert to fraction form
    25,287.36/37,912.31 = 12,127.20/x
  3. Step 3: Cross multiply
    25,287.36x = 37,912.31 × 12,127.20
  4. Step 4: Simplify right side
    25,287.36x = 459,770,165.83
  5. Step 5: Solve for x
    x = 459,770,165.83/25,287.36
  6. Step 6: Final answer
    x = 18,181.82

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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.