Home / 28,918.44-39,900.97-16,814.93

Finding the Fourth Proportional to 28,918.44, 39,900.97 and 16,814.93

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Solution

The fourth proportional to 28,918.44, 39,900.97 and 16,814.93 is: 23,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.44 : 39,900.97 = 16,814.93 : x
  2. Step 2: Convert to fraction form
    28,918.44/39,900.97 = 16,814.93/x
  3. Step 3: Cross multiply
    28,918.44x = 39,900.97 × 16,814.93
  4. Step 4: Simplify right side
    28,918.44x = 670,932,017.48
  5. Step 5: Solve for x
    x = 670,932,017.48/28,918.44
  6. Step 6: Final answer
    x = 23,200.84

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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.