Home / 20,697.24-31,034.48-8,204.60

Finding the Fourth Proportional to 20,697.24, 31,034.48 and 8,204.60

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Solution

The fourth proportional to 20,697.24, 31,034.48 and 8,204.60 is: 12,302.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.24 : 31,034.48 = 8,204.60 : x
  2. Step 2: Convert to fraction form
    20,697.24/31,034.48 = 8,204.60/x
  3. Step 3: Cross multiply
    20,697.24x = 31,034.48 × 8,204.60
  4. Step 4: Simplify right side
    20,697.24x = 254,625,494.61
  5. Step 5: Solve for x
    x = 254,625,494.61/20,697.24
  6. Step 6: Final answer
    x = 12,302.39

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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.