Home / 25,755.72-38,623.86-11,895

Finding the Fourth Proportional to 25,755.72, 38,623.86 and 11,895

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Solution

The fourth proportional to 25,755.72, 38,623.86 and 11,895 is: 17,838.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,755.72 : 38,623.86 = 11,895 : x
  2. Step 2: Convert to fraction form
    25,755.72/38,623.86 = 11,895/x
  3. Step 3: Cross multiply
    25,755.72x = 38,623.86 × 11,895
  4. Step 4: Simplify right side
    25,755.72x = 459,430,814.70
  5. Step 5: Solve for x
    x = 459,430,814.70/25,755.72
  6. Step 6: Final answer
    x = 17,838.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.