Home / 28,137.51-38,828.50-16,198.31

Finding the Fourth Proportional to 28,137.51, 38,828.50 and 16,198.31

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Solution

The fourth proportional to 28,137.51, 38,828.50 and 16,198.31 is: 22,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.51 : 38,828.50 = 16,198.31 : x
  2. Step 2: Convert to fraction form
    28,137.51/38,828.50 = 16,198.31/x
  3. Step 3: Cross multiply
    28,137.51x = 38,828.50 × 16,198.31
  4. Step 4: Simplify right side
    28,137.51x = 628,956,079.84
  5. Step 5: Solve for x
    x = 628,956,079.84/28,137.51
  6. Step 6: Final answer
    x = 22,352.94

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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.