Home / 21,288.58-29,375.47-12,334.17

Finding the Fourth Proportional to 21,288.58, 29,375.47 and 12,334.17

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Solution

The fourth proportional to 21,288.58, 29,375.47 and 12,334.17 is: 17,019.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,288.58 : 29,375.47 = 12,334.17 : x
  2. Step 2: Convert to fraction form
    21,288.58/29,375.47 = 12,334.17/x
  3. Step 3: Cross multiply
    21,288.58x = 29,375.47 × 12,334.17
  4. Step 4: Simplify right side
    21,288.58x = 362,321,832.26
  5. Step 5: Solve for x
    x = 362,321,832.26/21,288.58
  6. Step 6: Final answer
    x = 17,019.54

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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.