Home / 21,392.99-29,522.53-11,832.40

Finding the Fourth Proportional to 21,392.99, 29,522.53 and 11,832.40

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Solution

The fourth proportional to 21,392.99, 29,522.53 and 11,832.40 is: 16,328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,392.99 : 29,522.53 = 11,832.40 : x
  2. Step 2: Convert to fraction form
    21,392.99/29,522.53 = 11,832.40/x
  3. Step 3: Cross multiply
    21,392.99x = 29,522.53 × 11,832.40
  4. Step 4: Simplify right side
    21,392.99x = 349,322,383.97
  5. Step 5: Solve for x
    x = 349,322,383.97/21,392.99
  6. Step 6: Final answer
    x = 16,328.82

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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.