Home / 30,453.72-45,703.66-12,935.84

Finding the Fourth Proportional to 30,453.72, 45,703.66 and 12,935.84

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Solution

The fourth proportional to 30,453.72, 45,703.66 and 12,935.84 is: 19,413.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,453.72 : 45,703.66 = 12,935.84 : x
  2. Step 2: Convert to fraction form
    30,453.72/45,703.66 = 12,935.84/x
  3. Step 3: Cross multiply
    30,453.72x = 45,703.66 × 12,935.84
  4. Step 4: Simplify right side
    30,453.72x = 591,215,233.17
  5. Step 5: Solve for x
    x = 591,215,233.17/30,453.72
  6. Step 6: Final answer
    x = 19,413.56

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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.