Home / 25,774.24-38,661.36-11,921.44

Finding the Fourth Proportional to 25,774.24, 38,661.36 and 11,921.44

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Solution

The fourth proportional to 25,774.24, 38,661.36 and 11,921.44 is: 17,882.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,774.24 : 38,661.36 = 11,921.44 : x
  2. Step 2: Convert to fraction form
    25,774.24/38,661.36 = 11,921.44/x
  3. Step 3: Cross multiply
    25,774.24x = 38,661.36 × 11,921.44
  4. Step 4: Simplify right side
    25,774.24x = 460,899,083.56
  5. Step 5: Solve for x
    x = 460,899,083.56/25,774.24
  6. Step 6: Final answer
    x = 17,882.16

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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.