Home / 28,757.16-39,698.64-16,816.68

Finding the Fourth Proportional to 28,757.16, 39,698.64 and 16,816.68

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Solution

The fourth proportional to 28,757.16, 39,698.64 and 16,816.68 is: 23,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.16 : 39,698.64 = 16,816.68 : x
  2. Step 2: Convert to fraction form
    28,757.16/39,698.64 = 16,816.68/x
  3. Step 3: Cross multiply
    28,757.16x = 39,698.64 × 16,816.68
  4. Step 4: Simplify right side
    28,757.16x = 667,599,325.32
  5. Step 5: Solve for x
    x = 667,599,325.32/28,757.16
  6. Step 6: Final answer
    x = 23,215.06

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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.