Home / 21,221.48-29,296.03-13,266.27

Finding the Fourth Proportional to 21,221.48, 29,296.03 and 13,266.27

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Solution

The fourth proportional to 21,221.48, 29,296.03 and 13,266.27 is: 18,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,221.48 : 29,296.03 = 13,266.27 : x
  2. Step 2: Convert to fraction form
    21,221.48/29,296.03 = 13,266.27/x
  3. Step 3: Cross multiply
    21,221.48x = 29,296.03 × 13,266.27
  4. Step 4: Simplify right side
    21,221.48x = 388,649,043.91
  5. Step 5: Solve for x
    x = 388,649,043.91/21,221.48
  6. Step 6: Final answer
    x = 18,313.95

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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.