Home / 21,099.70-29,114.40-11,668.33

Finding the Fourth Proportional to 21,099.70, 29,114.40 and 11,668.33

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Solution

The fourth proportional to 21,099.70, 29,114.40 and 11,668.33 is: 16,100.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099.70 : 29,114.40 = 11,668.33 : x
  2. Step 2: Convert to fraction form
    21,099.70/29,114.40 = 11,668.33/x
  3. Step 3: Cross multiply
    21,099.70x = 29,114.40 × 11,668.33
  4. Step 4: Simplify right side
    21,099.70x = 339,716,426.95
  5. Step 5: Solve for x
    x = 339,716,426.95/21,099.70
  6. Step 6: Final answer
    x = 16,100.53

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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.