Home / 20,085.60-30,118.60-8,237.24

Finding the Fourth Proportional to 20,085.60, 30,118.60 and 8,237.24

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Solution

The fourth proportional to 20,085.60, 30,118.60 and 8,237.24 is: 12,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.60 : 30,118.60 = 8,237.24 : x
  2. Step 2: Convert to fraction form
    20,085.60/30,118.60 = 8,237.24/x
  3. Step 3: Cross multiply
    20,085.60x = 30,118.60 × 8,237.24
  4. Step 4: Simplify right side
    20,085.60x = 248,094,243.98
  5. Step 5: Solve for x
    x = 248,094,243.98/20,085.60
  6. Step 6: Final answer
    x = 12,351.85

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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.