Home / 21,557.73-29,743.83-12,607.44

Finding the Fourth Proportional to 21,557.73, 29,743.83 and 12,607.44

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Solution

The fourth proportional to 21,557.73, 29,743.83 and 12,607.44 is: 17,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.73 : 29,743.83 = 12,607.44 : x
  2. Step 2: Convert to fraction form
    21,557.73/29,743.83 = 12,607.44/x
  3. Step 3: Cross multiply
    21,557.73x = 29,743.83 × 12,607.44
  4. Step 4: Simplify right side
    21,557.73x = 374,993,552.10
  5. Step 5: Solve for x
    x = 374,993,552.10/21,557.73
  6. Step 6: Final answer
    x = 17,394.85

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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.