Home / 28,413.49-42,611.01-13,418.29

Finding the Fourth Proportional to 28,413.49, 42,611.01 and 13,418.29

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Solution

The fourth proportional to 28,413.49, 42,611.01 and 13,418.29 is: 20,123.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.49 : 42,611.01 = 13,418.29 : x
  2. Step 2: Convert to fraction form
    28,413.49/42,611.01 = 13,418.29/x
  3. Step 3: Cross multiply
    28,413.49x = 42,611.01 × 13,418.29
  4. Step 4: Simplify right side
    28,413.49x = 571,766,782.85
  5. Step 5: Solve for x
    x = 571,766,782.85/28,413.49
  6. Step 6: Final answer
    x = 20,123.08

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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.