Home / 20,178.25-27,846.88-16,815.43

Finding the Fourth Proportional to 20,178.25, 27,846.88 and 16,815.43

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Solution

The fourth proportional to 20,178.25, 27,846.88 and 16,815.43 is: 23,206.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.25 : 27,846.88 = 16,815.43 : x
  2. Step 2: Convert to fraction form
    20,178.25/27,846.88 = 16,815.43/x
  3. Step 3: Cross multiply
    20,178.25x = 27,846.88 × 16,815.43
  4. Step 4: Simplify right side
    20,178.25x = 468,257,038.05
  5. Step 5: Solve for x
    x = 468,257,038.05/20,178.25
  6. Step 6: Final answer
    x = 23,206.03

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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.