Home / 21,635.03-29,856.48-12,682.73

Finding the Fourth Proportional to 21,635.03, 29,856.48 and 12,682.73

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Solution

The fourth proportional to 21,635.03, 29,856.48 and 12,682.73 is: 17,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,635.03 : 29,856.48 = 12,682.73 : x
  2. Step 2: Convert to fraction form
    21,635.03/29,856.48 = 12,682.73/x
  3. Step 3: Cross multiply
    21,635.03x = 29,856.48 × 12,682.73
  4. Step 4: Simplify right side
    21,635.03x = 378,661,674.59
  5. Step 5: Solve for x
    x = 378,661,674.59/21,635.03
  6. Step 6: Final answer
    x = 17,502.25

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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.