Home / 28,413.80-42,586.66-20,081.32

Finding the Fourth Proportional to 28,413.80, 42,586.66 and 20,081.32

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Solution

The fourth proportional to 28,413.80, 42,586.66 and 20,081.32 is: 30,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.80 : 42,586.66 = 20,081.32 : x
  2. Step 2: Convert to fraction form
    28,413.80/42,586.66 = 20,081.32/x
  3. Step 3: Cross multiply
    28,413.80x = 42,586.66 × 20,081.32
  4. Step 4: Simplify right side
    28,413.80x = 855,196,347.19
  5. Step 5: Solve for x
    x = 855,196,347.19/28,413.80
  6. Step 6: Final answer
    x = 30,097.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.