Home / 28,571.07-42,884.24-13,790.39

Finding the Fourth Proportional to 28,571.07, 42,884.24 and 13,790.39

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Solution

The fourth proportional to 28,571.07, 42,884.24 and 13,790.39 is: 20,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.07 : 42,884.24 = 13,790.39 : x
  2. Step 2: Convert to fraction form
    28,571.07/42,884.24 = 13,790.39/x
  3. Step 3: Cross multiply
    28,571.07x = 42,884.24 × 13,790.39
  4. Step 4: Simplify right side
    28,571.07x = 591,390,394.45
  5. Step 5: Solve for x
    x = 591,390,394.45/28,571.07
  6. Step 6: Final answer
    x = 20,698.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.