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Finding the Fourth Proportional to 28,670.52, 43,010.64 and 8,948.64

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Solution

The fourth proportional to 28,670.52, 43,010.64 and 8,948.64 is: 13,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,670.52 : 43,010.64 = 8,948.64 : x
  2. Step 2: Convert to fraction form
    28,670.52/43,010.64 = 8,948.64/x
  3. Step 3: Cross multiply
    28,670.52x = 43,010.64 × 8,948.64
  4. Step 4: Simplify right side
    28,670.52x = 384,886,733.53
  5. Step 5: Solve for x
    x = 384,886,733.53/28,670.52
  6. Step 6: Final answer
    x = 13,424.48

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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.