Home / 30,413.18-41,970.25-16,984.39

Finding the Fourth Proportional to 30,413.18, 41,970.25 and 16,984.39

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Solution

The fourth proportional to 30,413.18, 41,970.25 and 16,984.39 is: 23,438.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,413.18 : 41,970.25 = 16,984.39 : x
  2. Step 2: Convert to fraction form
    30,413.18/41,970.25 = 16,984.39/x
  3. Step 3: Cross multiply
    30,413.18x = 41,970.25 × 16,984.39
  4. Step 4: Simplify right side
    30,413.18x = 712,839,094.40
  5. Step 5: Solve for x
    x = 712,839,094.40/30,413.18
  6. Step 6: Final answer
    x = 23,438.49

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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.