Home / 19,129.03-28,669.23-10,813.70

Finding the Fourth Proportional to 19,129.03, 28,669.23 and 10,813.70

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Solution

The fourth proportional to 19,129.03, 28,669.23 and 10,813.70 is: 16,206.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.03 : 28,669.23 = 10,813.70 : x
  2. Step 2: Convert to fraction form
    19,129.03/28,669.23 = 10,813.70/x
  3. Step 3: Cross multiply
    19,129.03x = 28,669.23 × 10,813.70
  4. Step 4: Simplify right side
    19,129.03x = 310,020,524.12
  5. Step 5: Solve for x
    x = 310,020,524.12/19,129.03
  6. Step 6: Final answer
    x = 16,206.81

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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.