Home / 19,315.92-28,993.32-14,106

Finding the Fourth Proportional to 19,315.92, 28,993.32 and 14,106

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Solution

The fourth proportional to 19,315.92, 28,993.32 and 14,106 is: 21,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.92 : 28,993.32 = 14,106 : x
  2. Step 2: Convert to fraction form
    19,315.92/28,993.32 = 14,106/x
  3. Step 3: Cross multiply
    19,315.92x = 28,993.32 × 14,106
  4. Step 4: Simplify right side
    19,315.92x = 408,979,771.92
  5. Step 5: Solve for x
    x = 408,979,771.92/19,315.92
  6. Step 6: Final answer
    x = 21,173.20

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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.