Home / 28,181.21-38,897.01-16,857.41

Finding the Fourth Proportional to 28,181.21, 38,897.01 and 16,857.41

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Solution

The fourth proportional to 28,181.21, 38,897.01 and 16,857.41 is: 23,267.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.21 : 38,897.01 = 16,857.41 : x
  2. Step 2: Convert to fraction form
    28,181.21/38,897.01 = 16,857.41/x
  3. Step 3: Cross multiply
    28,181.21x = 38,897.01 × 16,857.41
  4. Step 4: Simplify right side
    28,181.21x = 655,702,650.86
  5. Step 5: Solve for x
    x = 655,702,650.86/28,181.21
  6. Step 6: Final answer
    x = 23,267.37

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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.