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Finding the Fourth Proportional to 28,483.44, 39,307.44 and 15,906.72

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Solution

The fourth proportional to 28,483.44, 39,307.44 and 15,906.72 is: 21,951.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.44 : 39,307.44 = 15,906.72 : x
  2. Step 2: Convert to fraction form
    28,483.44/39,307.44 = 15,906.72/x
  3. Step 3: Cross multiply
    28,483.44x = 39,307.44 × 15,906.72
  4. Step 4: Simplify right side
    28,483.44x = 625,252,442.00
  5. Step 5: Solve for x
    x = 625,252,442.00/28,483.44
  6. Step 6: Final answer
    x = 21,951.44

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Double scale
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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.