Home / 28,933.25-39,928.05-16,840.91

Finding the Fourth Proportional to 28,933.25, 39,928.05 and 16,840.91

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Solution

The fourth proportional to 28,933.25, 39,928.05 and 16,840.91 is: 23,240.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,933.25 : 39,928.05 = 16,840.91 : x
  2. Step 2: Convert to fraction form
    28,933.25/39,928.05 = 16,840.91/x
  3. Step 3: Cross multiply
    28,933.25x = 39,928.05 × 16,840.91
  4. Step 4: Simplify right side
    28,933.25x = 672,424,496.89
  5. Step 5: Solve for x
    x = 672,424,496.89/28,933.25
  6. Step 6: Final answer
    x = 23,240.55

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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.