Home / 28,948.21-39,958.38-17,015.09

Finding the Fourth Proportional to 28,948.21, 39,958.38 and 17,015.09

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Solution

The fourth proportional to 28,948.21, 39,958.38 and 17,015.09 is: 23,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.21 : 39,958.38 = 17,015.09 : x
  2. Step 2: Convert to fraction form
    28,948.21/39,958.38 = 17,015.09/x
  3. Step 3: Cross multiply
    28,948.21x = 39,958.38 × 17,015.09
  4. Step 4: Simplify right side
    28,948.21x = 679,895,232.16
  5. Step 5: Solve for x
    x = 679,895,232.16/28,948.21
  6. Step 6: Final answer
    x = 23,486.61

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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.