Home / 21,229.57-29,296.00-11,798.74

Finding the Fourth Proportional to 21,229.57, 29,296.00 and 11,798.74

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Solution

The fourth proportional to 21,229.57, 29,296.00 and 11,798.74 is: 16,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.57 : 29,296.00 = 11,798.74 : x
  2. Step 2: Convert to fraction form
    21,229.57/29,296.00 = 11,798.74/x
  3. Step 3: Cross multiply
    21,229.57x = 29,296.00 × 11,798.74
  4. Step 4: Simplify right side
    21,229.57x = 345,655,784.30
  5. Step 5: Solve for x
    x = 345,655,784.30/21,229.57
  6. Step 6: Final answer
    x = 16,281.81

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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.