Home / 21,383.90-29,509.36-11,824.13

Finding the Fourth Proportional to 21,383.90, 29,509.36 and 11,824.13

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Solution

The fourth proportional to 21,383.90, 29,509.36 and 11,824.13 is: 16,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.90 : 29,509.36 = 11,824.13 : x
  2. Step 2: Convert to fraction form
    21,383.90/29,509.36 = 11,824.13/x
  3. Step 3: Cross multiply
    21,383.90x = 29,509.36 × 11,824.13
  4. Step 4: Simplify right side
    21,383.90x = 348,922,453.59
  5. Step 5: Solve for x
    x = 348,922,453.59/21,383.90
  6. Step 6: Final answer
    x = 16,317.06

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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.