Home / 20,543.20-30,798.60-8,846.80

Finding the Fourth Proportional to 20,543.20, 30,798.60 and 8,846.80

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Solution

The fourth proportional to 20,543.20, 30,798.60 and 8,846.80 is: 13,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.20 : 30,798.60 = 8,846.80 : x
  2. Step 2: Convert to fraction form
    20,543.20/30,798.60 = 8,846.80/x
  3. Step 3: Cross multiply
    20,543.20x = 30,798.60 × 8,846.80
  4. Step 4: Simplify right side
    20,543.20x = 272,469,054.48
  5. Step 5: Solve for x
    x = 272,469,054.48/20,543.20
  6. Step 6: Final answer
    x = 13,263.22

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1.5x scale

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.