Home / 30,723.20-46,102.75-12,952.78

Finding the Fourth Proportional to 30,723.20, 46,102.75 and 12,952.78

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Solution

The fourth proportional to 30,723.20, 46,102.75 and 12,952.78 is: 19,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,723.20 : 46,102.75 = 12,952.78 : x
  2. Step 2: Convert to fraction form
    30,723.20/46,102.75 = 12,952.78/x
  3. Step 3: Cross multiply
    30,723.20x = 46,102.75 × 12,952.78
  4. Step 4: Simplify right side
    30,723.20x = 597,158,778.15
  5. Step 5: Solve for x
    x = 597,158,778.15/30,723.20
  6. Step 6: Final answer
    x = 19,436.74

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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.