Home / 28,478.40-39,014.76-27,413.55

Finding the Fourth Proportional to 28,478.40, 39,014.76 and 27,413.55

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Solution

The fourth proportional to 28,478.40, 39,014.76 and 27,413.55 is: 37,555.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,478.40 : 39,014.76 = 27,413.55 : x
  2. Step 2: Convert to fraction form
    28,478.40/39,014.76 = 27,413.55/x
  3. Step 3: Cross multiply
    28,478.40x = 39,014.76 × 27,413.55
  4. Step 4: Simplify right side
    28,478.40x = 1,069,533,074.00
  5. Step 5: Solve for x
    x = 1,069,533,074.00/28,478.40
  6. Step 6: Final answer
    x = 37,555.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.