Home / 20,651.56-28,503.30-12,266.44

Finding the Fourth Proportional to 20,651.56, 28,503.30 and 12,266.44

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Solution

The fourth proportional to 20,651.56, 28,503.30 and 12,266.44 is: 16,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.56 : 28,503.30 = 12,266.44 : x
  2. Step 2: Convert to fraction form
    20,651.56/28,503.30 = 12,266.44/x
  3. Step 3: Cross multiply
    20,651.56x = 28,503.30 × 12,266.44
  4. Step 4: Simplify right side
    20,651.56x = 349,634,019.25
  5. Step 5: Solve for x
    x = 349,634,019.25/20,651.56
  6. Step 6: Final answer
    x = 16,930.15

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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.