Home / 20,847.24-28,771.98-12,348.70

Finding the Fourth Proportional to 20,847.24, 28,771.98 and 12,348.70

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Solution

The fourth proportional to 20,847.24, 28,771.98 and 12,348.70 is: 17,042.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847.24 : 28,771.98 = 12,348.70 : x
  2. Step 2: Convert to fraction form
    20,847.24/28,771.98 = 12,348.70/x
  3. Step 3: Cross multiply
    20,847.24x = 28,771.98 × 12,348.70
  4. Step 4: Simplify right side
    20,847.24x = 355,296,549.43
  5. Step 5: Solve for x
    x = 355,296,549.43/20,847.24
  6. Step 6: Final answer
    x = 17,042.86

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1.5x scale

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.