Home / 28,553.33-39,403.01-15,806.51

Finding the Fourth Proportional to 28,553.33, 39,403.01 and 15,806.51

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Solution

The fourth proportional to 28,553.33, 39,403.01 and 15,806.51 is: 21,812.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553.33 : 39,403.01 = 15,806.51 : x
  2. Step 2: Convert to fraction form
    28,553.33/39,403.01 = 15,806.51/x
  3. Step 3: Cross multiply
    28,553.33x = 39,403.01 × 15,806.51
  4. Step 4: Simplify right side
    28,553.33x = 622,823,992.56
  5. Step 5: Solve for x
    x = 622,823,992.56/28,553.33
  6. Step 6: Final answer
    x = 21,812.66

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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.