Home / 28,329.16-39,078.30-16,995.64

Finding the Fourth Proportional to 28,329.16, 39,078.30 and 16,995.64

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Solution

The fourth proportional to 28,329.16, 39,078.30 and 16,995.64 is: 23,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,329.16 : 39,078.30 = 16,995.64 : x
  2. Step 2: Convert to fraction form
    28,329.16/39,078.30 = 16,995.64/x
  3. Step 3: Cross multiply
    28,329.16x = 39,078.30 × 16,995.64
  4. Step 4: Simplify right side
    28,329.16x = 664,160,718.61
  5. Step 5: Solve for x
    x = 664,160,718.61/28,329.16
  6. Step 6: Final answer
    x = 23,444.42

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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.