Home / 21,668.26-29,903.61-12,236.98

Finding the Fourth Proportional to 21,668.26, 29,903.61 and 12,236.98

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Solution

The fourth proportional to 21,668.26, 29,903.61 and 12,236.98 is: 16,887.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.26 : 29,903.61 = 12,236.98 : x
  2. Step 2: Convert to fraction form
    21,668.26/29,903.61 = 12,236.98/x
  3. Step 3: Cross multiply
    21,668.26x = 29,903.61 × 12,236.98
  4. Step 4: Simplify right side
    21,668.26x = 365,929,877.50
  5. Step 5: Solve for x
    x = 365,929,877.50/21,668.26
  6. Step 6: Final answer
    x = 16,887.83

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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.