Home / 21,216.52-29,296.02-18,974.44

Finding the Fourth Proportional to 21,216.52, 29,296.02 and 18,974.44

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Solution

The fourth proportional to 21,216.52, 29,296.02 and 18,974.44 is: 26,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216.52 : 29,296.02 = 18,974.44 : x
  2. Step 2: Convert to fraction form
    21,216.52/29,296.02 = 18,974.44/x
  3. Step 3: Cross multiply
    21,216.52x = 29,296.02 × 18,974.44
  4. Step 4: Simplify right side
    21,216.52x = 555,875,573.73
  5. Step 5: Solve for x
    x = 555,875,573.73/21,216.52
  6. Step 6: Final answer
    x = 26,200.13

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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.