Home / 30,413.38-45,644.64-12,895.51

Finding the Fourth Proportional to 30,413.38, 45,644.64 and 12,895.51

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Solution

The fourth proportional to 30,413.38, 45,644.64 and 12,895.51 is: 19,353.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,413.38 : 45,644.64 = 12,895.51 : x
  2. Step 2: Convert to fraction form
    30,413.38/45,644.64 = 12,895.51/x
  3. Step 3: Cross multiply
    30,413.38x = 45,644.64 × 12,895.51
  4. Step 4: Simplify right side
    30,413.38x = 588,610,618.87
  5. Step 5: Solve for x
    x = 588,610,618.87/30,413.38
  6. Step 6: Final answer
    x = 19,353.68

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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.