Home / 21,585.00-29,789.44-12,631.97

Finding the Fourth Proportional to 21,585.00, 29,789.44 and 12,631.97

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Solution

The fourth proportional to 21,585.00, 29,789.44 and 12,631.97 is: 17,433.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.00 : 29,789.44 = 12,631.97 : x
  2. Step 2: Convert to fraction form
    21,585.00/29,789.44 = 12,631.97/x
  3. Step 3: Cross multiply
    21,585.00x = 29,789.44 × 12,631.97
  4. Step 4: Simplify right side
    21,585.00x = 376,299,355.29
  5. Step 5: Solve for x
    x = 376,299,355.29/21,585.00
  6. Step 6: Final answer
    x = 17,433.37

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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.