Home / 21,629.73-29,846.70-12,675.45

Finding the Fourth Proportional to 21,629.73, 29,846.70 and 12,675.45

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Solution

The fourth proportional to 21,629.73, 29,846.70 and 12,675.45 is: 17,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.73 : 29,846.70 = 12,675.45 : x
  2. Step 2: Convert to fraction form
    21,629.73/29,846.70 = 12,675.45/x
  3. Step 3: Cross multiply
    21,629.73x = 29,846.70 × 12,675.45
  4. Step 4: Simplify right side
    21,629.73x = 378,320,353.52
  5. Step 5: Solve for x
    x = 378,320,353.52/21,629.73
  6. Step 6: Final answer
    x = 17,490.76

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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.