Home / 21,588.56-29,794.36-12,635.54

Finding the Fourth Proportional to 21,588.56, 29,794.36 and 12,635.54

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Solution

The fourth proportional to 21,588.56, 29,794.36 and 12,635.54 is: 17,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,588.56 : 29,794.36 = 12,635.54 : x
  2. Step 2: Convert to fraction form
    21,588.56/29,794.36 = 12,635.54/x
  3. Step 3: Cross multiply
    21,588.56x = 29,794.36 × 12,635.54
  4. Step 4: Simplify right side
    21,588.56x = 376,467,827.55
  5. Step 5: Solve for x
    x = 376,467,827.55/21,588.56
  6. Step 6: Final answer
    x = 17,438.30

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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.