Home / 28,256.54-38,997.15-18,057

Finding the Fourth Proportional to 28,256.54, 38,997.15 and 18,057

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Solution

The fourth proportional to 28,256.54, 38,997.15 and 18,057 is: 24,920.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.54 : 38,997.15 = 18,057 : x
  2. Step 2: Convert to fraction form
    28,256.54/38,997.15 = 18,057/x
  3. Step 3: Cross multiply
    28,256.54x = 38,997.15 × 18,057
  4. Step 4: Simplify right side
    28,256.54x = 704,171,537.55
  5. Step 5: Solve for x
    x = 704,171,537.55/28,256.54
  6. Step 6: Final answer
    x = 24,920.66

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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.