Home / 28,876.25-39,849.35-15,628.25

Finding the Fourth Proportional to 28,876.25, 39,849.35 and 15,628.25

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Solution

The fourth proportional to 28,876.25, 39,849.35 and 15,628.25 is: 21,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.25 : 39,849.35 = 15,628.25 : x
  2. Step 2: Convert to fraction form
    28,876.25/39,849.35 = 15,628.25/x
  3. Step 3: Cross multiply
    28,876.25x = 39,849.35 × 15,628.25
  4. Step 4: Simplify right side
    28,876.25x = 622,775,604.14
  5. Step 5: Solve for x
    x = 622,775,604.14/28,876.25
  6. Step 6: Final answer
    x = 21,567.05

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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.