Home / 40,140.63-55,413.32-28,214.19

Finding the Fourth Proportional to 40,140.63, 55,413.32 and 28,214.19

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Solution

The fourth proportional to 40,140.63, 55,413.32 and 28,214.19 is: 38,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,140.63 : 55,413.32 = 28,214.19 : x
  2. Step 2: Convert to fraction form
    40,140.63/55,413.32 = 28,214.19/x
  3. Step 3: Cross multiply
    40,140.63x = 55,413.32 × 28,214.19
  4. Step 4: Simplify right side
    40,140.63x = 1,563,441,797.94
  5. Step 5: Solve for x
    x = 1,563,441,797.94/40,140.63
  6. Step 6: Final answer
    x = 38,949.11

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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.