Home / 20,795.88-28,698.52-11,364.64

Finding the Fourth Proportional to 20,795.88, 28,698.52 and 11,364.64

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Solution

The fourth proportional to 20,795.88, 28,698.52 and 11,364.64 is: 15,683.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.88 : 28,698.52 = 11,364.64 : x
  2. Step 2: Convert to fraction form
    20,795.88/28,698.52 = 11,364.64/x
  3. Step 3: Cross multiply
    20,795.88x = 28,698.52 × 11,364.64
  4. Step 4: Simplify right side
    20,795.88x = 326,148,348.33
  5. Step 5: Solve for x
    x = 326,148,348.33/20,795.88
  6. Step 6: Final answer
    x = 15,683.32

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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.