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Finding the Fourth Proportional to 28,713, 43,025.64 and 12,063.93

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Solution

The fourth proportional to 28,713, 43,025.64 and 12,063.93 is: 18,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,713 : 43,025.64 = 12,063.93 : x
  2. Step 2: Convert to fraction form
    28,713/43,025.64 = 12,063.93/x
  3. Step 3: Cross multiply
    28,713x = 43,025.64 × 12,063.93
  4. Step 4: Simplify right side
    28,713x = 519,058,309.17
  5. Step 5: Solve for x
    x = 519,058,309.17/28,713
  6. Step 6: Final answer
    x = 18,077.47

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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.