Home / 30,917.70-46,340.10-12,188.07

Finding the Fourth Proportional to 30,917.70, 46,340.10 and 12,188.07

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Solution

The fourth proportional to 30,917.70, 46,340.10 and 12,188.07 is: 18,267.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,917.70 : 46,340.10 = 12,188.07 : x
  2. Step 2: Convert to fraction form
    30,917.70/46,340.10 = 12,188.07/x
  3. Step 3: Cross multiply
    30,917.70x = 46,340.10 × 12,188.07
  4. Step 4: Simplify right side
    30,917.70x = 564,796,382.61
  5. Step 5: Solve for x
    x = 564,796,382.61/30,917.70
  6. Step 6: Final answer
    x = 18,267.74

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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.