Home / 28,871.14-39,820.08-19,933.60

Finding the Fourth Proportional to 28,871.14, 39,820.08 and 19,933.60

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Solution

The fourth proportional to 28,871.14, 39,820.08 and 19,933.60 is: 27,493.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.14 : 39,820.08 = 19,933.60 : x
  2. Step 2: Convert to fraction form
    28,871.14/39,820.08 = 19,933.60/x
  3. Step 3: Cross multiply
    28,871.14x = 39,820.08 × 19,933.60
  4. Step 4: Simplify right side
    28,871.14x = 793,757,546.69
  5. Step 5: Solve for x
    x = 793,757,546.69/28,871.14
  6. Step 6: Final answer
    x = 27,493.11

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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.