Home / 21,099.31-29,117.24-11,668.03

Finding the Fourth Proportional to 21,099.31, 29,117.24 and 11,668.03

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Solution

The fourth proportional to 21,099.31, 29,117.24 and 11,668.03 is: 16,101.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099.31 : 29,117.24 = 11,668.03 : x
  2. Step 2: Convert to fraction form
    21,099.31/29,117.24 = 11,668.03/x
  3. Step 3: Cross multiply
    21,099.31x = 29,117.24 × 11,668.03
  4. Step 4: Simplify right side
    21,099.31x = 339,740,829.84
  5. Step 5: Solve for x
    x = 339,740,829.84/21,099.31
  6. Step 6: Final answer
    x = 16,101.99

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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.