Home / 28,204.47-42,299.73-12,413.45

Finding the Fourth Proportional to 28,204.47, 42,299.73 and 12,413.45

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Solution

The fourth proportional to 28,204.47, 42,299.73 and 12,413.45 is: 18,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.47 : 42,299.73 = 12,413.45 : x
  2. Step 2: Convert to fraction form
    28,204.47/42,299.73 = 12,413.45/x
  3. Step 3: Cross multiply
    28,204.47x = 42,299.73 × 12,413.45
  4. Step 4: Simplify right side
    28,204.47x = 525,085,689.12
  5. Step 5: Solve for x
    x = 525,085,689.12/28,204.47
  6. Step 6: Final answer
    x = 18,617.11

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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.