Home / 20,907.72-28,852.68-11,476.32

Finding the Fourth Proportional to 20,907.72, 28,852.68 and 11,476.32

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Solution

The fourth proportional to 20,907.72, 28,852.68 and 11,476.32 is: 15,837.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,907.72 : 28,852.68 = 11,476.32 : x
  2. Step 2: Convert to fraction form
    20,907.72/28,852.68 = 11,476.32/x
  3. Step 3: Cross multiply
    20,907.72x = 28,852.68 × 11,476.32
  4. Step 4: Simplify right side
    20,907.72x = 331,122,588.54
  5. Step 5: Solve for x
    x = 331,122,588.54/20,907.72
  6. Step 6: Final answer
    x = 15,837.34

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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.