Home / 20,376.75-28,111.01-14,413.53

Finding the Fourth Proportional to 20,376.75, 28,111.01 and 14,413.53

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Solution

The fourth proportional to 20,376.75, 28,111.01 and 14,413.53 is: 19,884.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.75 : 28,111.01 = 14,413.53 : x
  2. Step 2: Convert to fraction form
    20,376.75/28,111.01 = 14,413.53/x
  3. Step 3: Cross multiply
    20,376.75x = 28,111.01 × 14,413.53
  4. Step 4: Simplify right side
    20,376.75x = 405,178,813.90
  5. Step 5: Solve for x
    x = 405,178,813.90/20,376.75
  6. Step 6: Final answer
    x = 19,884.37

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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.