Home / 28,293.49-39,028.39-17,688.36

Finding the Fourth Proportional to 28,293.49, 39,028.39 and 17,688.36

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Solution

The fourth proportional to 28,293.49, 39,028.39 and 17,688.36 is: 24,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.49 : 39,028.39 = 17,688.36 : x
  2. Step 2: Convert to fraction form
    28,293.49/39,028.39 = 17,688.36/x
  3. Step 3: Cross multiply
    28,293.49x = 39,028.39 × 17,688.36
  4. Step 4: Simplify right side
    28,293.49x = 690,348,212.54
  5. Step 5: Solve for x
    x = 690,348,212.54/28,293.49
  6. Step 6: Final answer
    x = 24,399.54

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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.