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Finding the Fourth Proportional to 28,892.88, 43,315 and 14,094.16

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Solution

The fourth proportional to 28,892.88, 43,315 and 14,094.16 is: 21,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.88 : 43,315 = 14,094.16 : x
  2. Step 2: Convert to fraction form
    28,892.88/43,315 = 14,094.16/x
  3. Step 3: Cross multiply
    28,892.88x = 43,315 × 14,094.16
  4. Step 4: Simplify right side
    28,892.88x = 610,488,540.40
  5. Step 5: Solve for x
    x = 610,488,540.40/28,892.88
  6. Step 6: Final answer
    x = 21,129.38

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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.