Home / 18,795.64-28,115.54-14,319.43

Finding the Fourth Proportional to 18,795.64, 28,115.54 and 14,319.43

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Solution

The fourth proportional to 18,795.64, 28,115.54 and 14,319.43 is: 21,419.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.64 : 28,115.54 = 14,319.43 : x
  2. Step 2: Convert to fraction form
    18,795.64/28,115.54 = 14,319.43/x
  3. Step 3: Cross multiply
    18,795.64x = 28,115.54 × 14,319.43
  4. Step 4: Simplify right side
    18,795.64x = 402,598,506.94
  5. Step 5: Solve for x
    x = 402,598,506.94/18,795.64
  6. Step 6: Final answer
    x = 21,419.78

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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.