Home / 21,463.52-29,618.46-11,903.09

Finding the Fourth Proportional to 21,463.52, 29,618.46 and 11,903.09

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Solution

The fourth proportional to 21,463.52, 29,618.46 and 11,903.09 is: 16,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.52 : 29,618.46 = 11,903.09 : x
  2. Step 2: Convert to fraction form
    21,463.52/29,618.46 = 11,903.09/x
  3. Step 3: Cross multiply
    21,463.52x = 29,618.46 × 11,903.09
  4. Step 4: Simplify right side
    21,463.52x = 352,551,046.95
  5. Step 5: Solve for x
    x = 352,551,046.95/21,463.52
  6. Step 6: Final answer
    x = 16,425.60

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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.