Home / 18,927.08-28,357.32-16,865.44

Finding the Fourth Proportional to 18,927.08, 28,357.32 and 16,865.44

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Solution

The fourth proportional to 18,927.08, 28,357.32 and 16,865.44 is: 25,268.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.08 : 28,357.32 = 16,865.44 : x
  2. Step 2: Convert to fraction form
    18,927.08/28,357.32 = 16,865.44/x
  3. Step 3: Cross multiply
    18,927.08x = 28,357.32 × 16,865.44
  4. Step 4: Simplify right side
    18,927.08x = 478,258,679.02
  5. Step 5: Solve for x
    x = 478,258,679.02/18,927.08
  6. Step 6: Final answer
    x = 25,268.49

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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.