Home / 19,315.08-28,972.49-12,693.33

Finding the Fourth Proportional to 19,315.08, 28,972.49 and 12,693.33

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Solution

The fourth proportional to 19,315.08, 28,972.49 and 12,693.33 is: 19,039.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.08 : 28,972.49 = 12,693.33 : x
  2. Step 2: Convert to fraction form
    19,315.08/28,972.49 = 12,693.33/x
  3. Step 3: Cross multiply
    19,315.08x = 28,972.49 × 12,693.33
  4. Step 4: Simplify right side
    19,315.08x = 367,757,313.03
  5. Step 5: Solve for x
    x = 367,757,313.03/19,315.08
  6. Step 6: Final answer
    x = 19,039.91

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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.