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Finding the Fourth Proportional to 28,805.88, 43,208.88 and 11,273.40

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Solution

The fourth proportional to 28,805.88, 43,208.88 and 11,273.40 is: 16,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.88 : 43,208.88 = 11,273.40 : x
  2. Step 2: Convert to fraction form
    28,805.88/43,208.88 = 11,273.40/x
  3. Step 3: Cross multiply
    28,805.88x = 43,208.88 × 11,273.40
  4. Step 4: Simplify right side
    28,805.88x = 487,110,987.79
  5. Step 5: Solve for x
    x = 487,110,987.79/28,805.88
  6. Step 6: Final answer
    x = 16,910.12

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1.5x scale

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.