Home / 21,629.36-29,848.56-11,693.36

Finding the Fourth Proportional to 21,629.36, 29,848.56 and 11,693.36

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Solution

The fourth proportional to 21,629.36, 29,848.56 and 11,693.36 is: 16,136.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.36 : 29,848.56 = 11,693.36 : x
  2. Step 2: Convert to fraction form
    21,629.36/29,848.56 = 11,693.36/x
  3. Step 3: Cross multiply
    21,629.36x = 29,848.56 × 11,693.36
  4. Step 4: Simplify right side
    21,629.36x = 349,029,957.56
  5. Step 5: Solve for x
    x = 349,029,957.56/21,629.36
  6. Step 6: Final answer
    x = 16,136.86

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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.