Home / 20,907.80-28,852.74-11,476.44

Finding the Fourth Proportional to 20,907.80, 28,852.74 and 11,476.44

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Solution

The fourth proportional to 20,907.80, 28,852.74 and 11,476.44 is: 15,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,907.80 : 28,852.74 = 11,476.44 : x
  2. Step 2: Convert to fraction form
    20,907.80/28,852.74 = 11,476.44/x
  3. Step 3: Cross multiply
    20,907.80x = 28,852.74 × 11,476.44
  4. Step 4: Simplify right side
    20,907.80x = 331,126,739.45
  5. Step 5: Solve for x
    x = 331,126,739.45/20,907.80
  6. Step 6: Final answer
    x = 15,837.47

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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.