Home / 38,403.50-52,999.90-21,413.24

Finding the Fourth Proportional to 38,403.50, 52,999.90 and 21,413.24

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Solution

The fourth proportional to 38,403.50, 52,999.90 and 21,413.24 is: 29,551.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,403.50 : 52,999.90 = 21,413.24 : x
  2. Step 2: Convert to fraction form
    38,403.50/52,999.90 = 21,413.24/x
  3. Step 3: Cross multiply
    38,403.50x = 52,999.90 × 21,413.24
  4. Step 4: Simplify right side
    38,403.50x = 1,134,899,578.68
  5. Step 5: Solve for x
    x = 1,134,899,578.68/38,403.50
  6. Step 6: Final answer
    x = 29,551.98

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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.