Home / 30,870.22-46,273.52-12,142.66

Finding the Fourth Proportional to 30,870.22, 46,273.52 and 12,142.66

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Solution

The fourth proportional to 30,870.22, 46,273.52 and 12,142.66 is: 18,201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,870.22 : 46,273.52 = 12,142.66 : x
  2. Step 2: Convert to fraction form
    30,870.22/46,273.52 = 12,142.66/x
  3. Step 3: Cross multiply
    30,870.22x = 46,273.52 × 12,142.66
  4. Step 4: Simplify right side
    30,870.22x = 561,883,620.36
  5. Step 5: Solve for x
    x = 561,883,620.36/30,870.22
  6. Step 6: Final answer
    x = 18,201.48

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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.