Home / 28,413.48-39,219.72-16,488.60

Finding the Fourth Proportional to 28,413.48, 39,219.72 and 16,488.60

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Solution

The fourth proportional to 28,413.48, 39,219.72 and 16,488.60 is: 22,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.48 : 39,219.72 = 16,488.60 : x
  2. Step 2: Convert to fraction form
    28,413.48/39,219.72 = 16,488.60/x
  3. Step 3: Cross multiply
    28,413.48x = 39,219.72 × 16,488.60
  4. Step 4: Simplify right side
    28,413.48x = 646,678,275.19
  5. Step 5: Solve for x
    x = 646,678,275.19/28,413.48
  6. Step 6: Final answer
    x = 22,759.56

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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.