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Finding the Fourth Proportional to 28,999.52, 43,505.76 and 9,279.26

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Solution

The fourth proportional to 28,999.52, 43,505.76 and 9,279.26 is: 13,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.52 : 43,505.76 = 9,279.26 : x
  2. Step 2: Convert to fraction form
    28,999.52/43,505.76 = 9,279.26/x
  3. Step 3: Cross multiply
    28,999.52x = 43,505.76 × 9,279.26
  4. Step 4: Simplify right side
    28,999.52x = 403,701,258.54
  5. Step 5: Solve for x
    x = 403,701,258.54/28,999.52
  6. Step 6: Final answer
    x = 13,920.96

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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.