Home / 20,202.94-27,878.27-11,702.35

Finding the Fourth Proportional to 20,202.94, 27,878.27 and 11,702.35

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Solution

The fourth proportional to 20,202.94, 27,878.27 and 11,702.35 is: 16,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202.94 : 27,878.27 = 11,702.35 : x
  2. Step 2: Convert to fraction form
    20,202.94/27,878.27 = 11,702.35/x
  3. Step 3: Cross multiply
    20,202.94x = 27,878.27 × 11,702.35
  4. Step 4: Simplify right side
    20,202.94x = 326,241,133.54
  5. Step 5: Solve for x
    x = 326,241,133.54/20,202.94
  6. Step 6: Final answer
    x = 16,148.20

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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.