Home / 21,188.07-29,238.51-11,627.73

Finding the Fourth Proportional to 21,188.07, 29,238.51 and 11,627.73

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Solution

The fourth proportional to 21,188.07, 29,238.51 and 11,627.73 is: 16,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.07 : 29,238.51 = 11,627.73 : x
  2. Step 2: Convert to fraction form
    21,188.07/29,238.51 = 11,627.73/x
  3. Step 3: Cross multiply
    21,188.07x = 29,238.51 × 11,627.73
  4. Step 4: Simplify right side
    21,188.07x = 339,977,499.88
  5. Step 5: Solve for x
    x = 339,977,499.88/21,188.07
  6. Step 6: Final answer
    x = 16,045.70

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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.