Home / 19,295.84-28,920.66-9,940.34

Finding the Fourth Proportional to 19,295.84, 28,920.66 and 9,940.34

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Solution

The fourth proportional to 19,295.84, 28,920.66 and 9,940.34 is: 14,898.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,295.84 : 28,920.66 = 9,940.34 : x
  2. Step 2: Convert to fraction form
    19,295.84/28,920.66 = 9,940.34/x
  3. Step 3: Cross multiply
    19,295.84x = 28,920.66 × 9,940.34
  4. Step 4: Simplify right side
    19,295.84x = 287,481,048.82
  5. Step 5: Solve for x
    x = 287,481,048.82/19,295.84
  6. Step 6: Final answer
    x = 14,898.61

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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.