Home / 20,563.06-28,375.95-12,064

Finding the Fourth Proportional to 20,563.06, 28,375.95 and 12,064

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Solution

The fourth proportional to 20,563.06, 28,375.95 and 12,064 is: 16,647.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.06 : 28,375.95 = 12,064 : x
  2. Step 2: Convert to fraction form
    20,563.06/28,375.95 = 12,064/x
  3. Step 3: Cross multiply
    20,563.06x = 28,375.95 × 12,064
  4. Step 4: Simplify right side
    20,563.06x = 342,327,460.80
  5. Step 5: Solve for x
    x = 342,327,460.80/20,563.06
  6. Step 6: Final answer
    x = 16,647.69

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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.