Home / 28,908.72-39,892.68-16,982.28

Finding the Fourth Proportional to 28,908.72, 39,892.68 and 16,982.28

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Solution

The fourth proportional to 28,908.72, 39,892.68 and 16,982.28 is: 23,434.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.72 : 39,892.68 = 16,982.28 : x
  2. Step 2: Convert to fraction form
    28,908.72/39,892.68 = 16,982.28/x
  3. Step 3: Cross multiply
    28,908.72x = 39,892.68 × 16,982.28
  4. Step 4: Simplify right side
    28,908.72x = 677,468,661.71
  5. Step 5: Solve for x
    x = 677,468,661.71/28,908.72
  6. Step 6: Final answer
    x = 23,434.75

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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.