Home / 21,324.06-29,442.84-13,774.80

Finding the Fourth Proportional to 21,324.06, 29,442.84 and 13,774.80

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Solution

The fourth proportional to 21,324.06, 29,442.84 and 13,774.80 is: 19,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.06 : 29,442.84 = 13,774.80 : x
  2. Step 2: Convert to fraction form
    21,324.06/29,442.84 = 13,774.80/x
  3. Step 3: Cross multiply
    21,324.06x = 29,442.84 × 13,774.80
  4. Step 4: Simplify right side
    21,324.06x = 405,569,232.43
  5. Step 5: Solve for x
    x = 405,569,232.43/21,324.06
  6. Step 6: Final answer
    x = 19,019.33

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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.