Home / 21,916.93-30,245.50-11,845.35

Finding the Fourth Proportional to 21,916.93, 30,245.50 and 11,845.35

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Solution

The fourth proportional to 21,916.93, 30,245.50 and 11,845.35 is: 16,346.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.93 : 30,245.50 = 11,845.35 : x
  2. Step 2: Convert to fraction form
    21,916.93/30,245.50 = 11,845.35/x
  3. Step 3: Cross multiply
    21,916.93x = 30,245.50 × 11,845.35
  4. Step 4: Simplify right side
    21,916.93x = 358,268,533.43
  5. Step 5: Solve for x
    x = 358,268,533.43/21,916.93
  6. Step 6: Final answer
    x = 16,346.66

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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.