Home / 20,683.03-28,549.07-12,184.58

Finding the Fourth Proportional to 20,683.03, 28,549.07 and 12,184.58

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Solution

The fourth proportional to 20,683.03, 28,549.07 and 12,184.58 is: 16,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.03 : 28,549.07 = 12,184.58 : x
  2. Step 2: Convert to fraction form
    20,683.03/28,549.07 = 12,184.58/x
  3. Step 3: Cross multiply
    20,683.03x = 28,549.07 × 12,184.58
  4. Step 4: Simplify right side
    20,683.03x = 347,858,269.36
  5. Step 5: Solve for x
    x = 347,858,269.36/20,683.03
  6. Step 6: Final answer
    x = 16,818.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.