Home / 28,803.08-39,749.11-16,865.30

Finding the Fourth Proportional to 28,803.08, 39,749.11 and 16,865.30

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Solution

The fourth proportional to 28,803.08, 39,749.11 and 16,865.30 is: 23,274.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,803.08 : 39,749.11 = 16,865.30 : x
  2. Step 2: Convert to fraction form
    28,803.08/39,749.11 = 16,865.30/x
  3. Step 3: Cross multiply
    28,803.08x = 39,749.11 × 16,865.30
  4. Step 4: Simplify right side
    28,803.08x = 670,380,722.09
  5. Step 5: Solve for x
    x = 670,380,722.09/28,803.08
  6. Step 6: Final answer
    x = 23,274.62

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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.