Home / 30,988.86-46,501.51-12,270.70

Finding the Fourth Proportional to 30,988.86, 46,501.51 and 12,270.70

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Solution

The fourth proportional to 30,988.86, 46,501.51 and 12,270.70 is: 18,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,988.86 : 46,501.51 = 12,270.70 : x
  2. Step 2: Convert to fraction form
    30,988.86/46,501.51 = 12,270.70/x
  3. Step 3: Cross multiply
    30,988.86x = 46,501.51 × 12,270.70
  4. Step 4: Simplify right side
    30,988.86x = 570,606,078.76
  5. Step 5: Solve for x
    x = 570,606,078.76/30,988.86
  6. Step 6: Final answer
    x = 18,413.26

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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.