Home / 28,536.33-39,389.27-20,040.51

Finding the Fourth Proportional to 28,536.33, 39,389.27 and 20,040.51

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Solution

The fourth proportional to 28,536.33, 39,389.27 and 20,040.51 is: 27,662.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.33 : 39,389.27 = 20,040.51 : x
  2. Step 2: Convert to fraction form
    28,536.33/39,389.27 = 20,040.51/x
  3. Step 3: Cross multiply
    28,536.33x = 39,389.27 × 20,040.51
  4. Step 4: Simplify right side
    28,536.33x = 789,381,059.33
  5. Step 5: Solve for x
    x = 789,381,059.33/28,536.33
  6. Step 6: Final answer
    x = 27,662.32

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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.