Home / 39,429.54-54,413.98-21,525.71

Finding the Fourth Proportional to 39,429.54, 54,413.98 and 21,525.71

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Solution

The fourth proportional to 39,429.54, 54,413.98 and 21,525.71 is: 29,706.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.54 : 54,413.98 = 21,525.71 : x
  2. Step 2: Convert to fraction form
    39,429.54/54,413.98 = 21,525.71/x
  3. Step 3: Cross multiply
    39,429.54x = 54,413.98 × 21,525.71
  4. Step 4: Simplify right side
    39,429.54x = 1,171,299,227.54
  5. Step 5: Solve for x
    x = 1,171,299,227.54/39,429.54
  6. Step 6: Final answer
    x = 29,706.13

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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.