Home / 20,611.14-28,466.55-13,884.99

Finding the Fourth Proportional to 20,611.14, 28,466.55 and 13,884.99

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Solution

The fourth proportional to 20,611.14, 28,466.55 and 13,884.99 is: 19,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611.14 : 28,466.55 = 13,884.99 : x
  2. Step 2: Convert to fraction form
    20,611.14/28,466.55 = 13,884.99/x
  3. Step 3: Cross multiply
    20,611.14x = 28,466.55 × 13,884.99
  4. Step 4: Simplify right side
    20,611.14x = 395,257,762.08
  5. Step 5: Solve for x
    x = 395,257,762.08/20,611.14
  6. Step 6: Final answer
    x = 19,176.90

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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.