Home / 19,131.66-28,708.83-10,366.38

Finding the Fourth Proportional to 19,131.66, 28,708.83 and 10,366.38

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Solution

The fourth proportional to 19,131.66, 28,708.83 and 10,366.38 is: 15,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.66 : 28,708.83 = 10,366.38 : x
  2. Step 2: Convert to fraction form
    19,131.66/28,708.83 = 10,366.38/x
  3. Step 3: Cross multiply
    19,131.66x = 28,708.83 × 10,366.38
  4. Step 4: Simplify right side
    19,131.66x = 297,606,641.14
  5. Step 5: Solve for x
    x = 297,606,641.14/19,131.66
  6. Step 6: Final answer
    x = 15,555.71

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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.