Home / 23,720.20-35,570.70-8,129.80

Finding the Fourth Proportional to 23,720.20, 35,570.70 and 8,129.80

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Solution

The fourth proportional to 23,720.20, 35,570.70 and 8,129.80 is: 12,191.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,720.20 : 35,570.70 = 8,129.80 : x
  2. Step 2: Convert to fraction form
    23,720.20/35,570.70 = 8,129.80/x
  3. Step 3: Cross multiply
    23,720.20x = 35,570.70 × 8,129.80
  4. Step 4: Simplify right side
    23,720.20x = 289,182,676.86
  5. Step 5: Solve for x
    x = 289,182,676.86/23,720.20
  6. Step 6: Final answer
    x = 12,191.41

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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.