Home / 21,099.39-29,105.58-13,537.27

Finding the Fourth Proportional to 21,099.39, 29,105.58 and 13,537.27

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Solution

The fourth proportional to 21,099.39, 29,105.58 and 13,537.27 is: 18,674.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099.39 : 29,105.58 = 13,537.27 : x
  2. Step 2: Convert to fraction form
    21,099.39/29,105.58 = 13,537.27/x
  3. Step 3: Cross multiply
    21,099.39x = 29,105.58 × 13,537.27
  4. Step 4: Simplify right side
    21,099.39x = 394,010,094.97
  5. Step 5: Solve for x
    x = 394,010,094.97/21,099.39
  6. Step 6: Final answer
    x = 18,674.00

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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.