Home / 39,430.82-54,413.70-21,524.96

Finding the Fourth Proportional to 39,430.82, 54,413.70 and 21,524.96

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Solution

The fourth proportional to 39,430.82, 54,413.70 and 21,524.96 is: 29,703.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.82 : 54,413.70 = 21,524.96 : x
  2. Step 2: Convert to fraction form
    39,430.82/54,413.70 = 21,524.96/x
  3. Step 3: Cross multiply
    39,430.82x = 54,413.70 × 21,524.96
  4. Step 4: Simplify right side
    39,430.82x = 1,171,252,715.95
  5. Step 5: Solve for x
    x = 1,171,252,715.95/39,430.82
  6. Step 6: Final answer
    x = 29,703.99

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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.