Home / 28,187.83-38,889.21-16,849.45

Finding the Fourth Proportional to 28,187.83, 38,889.21 and 16,849.45

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Solution

The fourth proportional to 28,187.83, 38,889.21 and 16,849.45 is: 23,246.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,187.83 : 38,889.21 = 16,849.45 : x
  2. Step 2: Convert to fraction form
    28,187.83/38,889.21 = 16,849.45/x
  3. Step 3: Cross multiply
    28,187.83x = 38,889.21 × 16,849.45
  4. Step 4: Simplify right side
    28,187.83x = 655,261,799.43
  5. Step 5: Solve for x
    x = 655,261,799.43/28,187.83
  6. Step 6: Final answer
    x = 23,246.27

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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.