Home / 30,880.32-46,326.88-12,413.76

Finding the Fourth Proportional to 30,880.32, 46,326.88 and 12,413.76

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Solution

The fourth proportional to 30,880.32, 46,326.88 and 12,413.76 is: 18,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,880.32 : 46,326.88 = 12,413.76 : x
  2. Step 2: Convert to fraction form
    30,880.32/46,326.88 = 12,413.76/x
  3. Step 3: Cross multiply
    30,880.32x = 46,326.88 × 12,413.76
  4. Step 4: Simplify right side
    30,880.32x = 575,090,769.87
  5. Step 5: Solve for x
    x = 575,090,769.87/30,880.32
  6. Step 6: Final answer
    x = 18,623.21

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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.