Home / 39,430.96-54,413.88-21,526.48

Finding the Fourth Proportional to 39,430.96, 54,413.88 and 21,526.48

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Solution

The fourth proportional to 39,430.96, 54,413.88 and 21,526.48 is: 29,706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.96 : 54,413.88 = 21,526.48 : x
  2. Step 2: Convert to fraction form
    39,430.96/54,413.88 = 21,526.48/x
  3. Step 3: Cross multiply
    39,430.96x = 54,413.88 × 21,526.48
  4. Step 4: Simplify right side
    39,430.96x = 1,171,339,299.54
  5. Step 5: Solve for x
    x = 1,171,339,299.54/39,430.96
  6. Step 6: Final answer
    x = 29,706.08

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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.