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Finding the Fourth Proportional to 28,856, 43,258.08 and 10,383.68

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Solution

The fourth proportional to 28,856, 43,258.08 and 10,383.68 is: 15,566.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856 : 43,258.08 = 10,383.68 : x
  2. Step 2: Convert to fraction form
    28,856/43,258.08 = 10,383.68/x
  3. Step 3: Cross multiply
    28,856x = 43,258.08 × 10,383.68
  4. Step 4: Simplify right side
    28,856x = 449,178,060.13
  5. Step 5: Solve for x
    x = 449,178,060.13/28,856
  6. Step 6: Final answer
    x = 15,566.19

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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.