Home / 28,874.53-39,845.73-18,125.20

Finding the Fourth Proportional to 28,874.53, 39,845.73 and 18,125.20

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Solution

The fourth proportional to 28,874.53, 39,845.73 and 18,125.20 is: 25,012.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,874.53 : 39,845.73 = 18,125.20 : x
  2. Step 2: Convert to fraction form
    28,874.53/39,845.73 = 18,125.20/x
  3. Step 3: Cross multiply
    28,874.53x = 39,845.73 × 18,125.20
  4. Step 4: Simplify right side
    28,874.53x = 722,211,825.40
  5. Step 5: Solve for x
    x = 722,211,825.40/28,874.53
  6. Step 6: Final answer
    x = 25,012.07

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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.