Home / 28,605.78-39,475.26-17,284.68

Finding the Fourth Proportional to 28,605.78, 39,475.26 and 17,284.68

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Solution

The fourth proportional to 28,605.78, 39,475.26 and 17,284.68 is: 23,852.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605.78 : 39,475.26 = 17,284.68 : x
  2. Step 2: Convert to fraction form
    28,605.78/39,475.26 = 17,284.68/x
  3. Step 3: Cross multiply
    28,605.78x = 39,475.26 × 17,284.68
  4. Step 4: Simplify right side
    28,605.78x = 682,317,237.02
  5. Step 5: Solve for x
    x = 682,317,237.02/28,605.78
  6. Step 6: Final answer
    x = 23,852.43

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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.