Home / 28,588.67-42,860.11-13,588.26

Finding the Fourth Proportional to 28,588.67, 42,860.11 and 13,588.26

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Solution

The fourth proportional to 28,588.67, 42,860.11 and 13,588.26 is: 20,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.67 : 42,860.11 = 13,588.26 : x
  2. Step 2: Convert to fraction form
    28,588.67/42,860.11 = 13,588.26/x
  3. Step 3: Cross multiply
    28,588.67x = 42,860.11 × 13,588.26
  4. Step 4: Simplify right side
    28,588.67x = 582,394,318.31
  5. Step 5: Solve for x
    x = 582,394,318.31/28,588.67
  6. Step 6: Final answer
    x = 20,371.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.