Home / 20,269.63-30,408.09-8,583.76

Finding the Fourth Proportional to 20,269.63, 30,408.09 and 8,583.76

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Solution

The fourth proportional to 20,269.63, 30,408.09 and 8,583.76 is: 12,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.63 : 30,408.09 = 8,583.76 : x
  2. Step 2: Convert to fraction form
    20,269.63/30,408.09 = 8,583.76/x
  3. Step 3: Cross multiply
    20,269.63x = 30,408.09 × 8,583.76
  4. Step 4: Simplify right side
    20,269.63x = 261,015,746.62
  5. Step 5: Solve for x
    x = 261,015,746.62/20,269.63
  6. Step 6: Final answer
    x = 12,877.18

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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.