Home / 28,868.87-39,836.40-16,930.01

Finding the Fourth Proportional to 28,868.87, 39,836.40 and 16,930.01

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Solution

The fourth proportional to 28,868.87, 39,836.40 and 16,930.01 is: 23,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.87 : 39,836.40 = 16,930.01 : x
  2. Step 2: Convert to fraction form
    28,868.87/39,836.40 = 16,930.01/x
  3. Step 3: Cross multiply
    28,868.87x = 39,836.40 × 16,930.01
  4. Step 4: Simplify right side
    28,868.87x = 674,430,650.36
  5. Step 5: Solve for x
    x = 674,430,650.36/28,868.87
  6. Step 6: Final answer
    x = 23,361.87

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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.