Home / 19,313.31-28,975.43-11,422.83

Finding the Fourth Proportional to 19,313.31, 28,975.43 and 11,422.83

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Solution

The fourth proportional to 19,313.31, 28,975.43 and 11,422.83 is: 17,137.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313.31 : 28,975.43 = 11,422.83 : x
  2. Step 2: Convert to fraction form
    19,313.31/28,975.43 = 11,422.83/x
  3. Step 3: Cross multiply
    19,313.31x = 28,975.43 × 11,422.83
  4. Step 4: Simplify right side
    19,313.31x = 330,981,411.07
  5. Step 5: Solve for x
    x = 330,981,411.07/19,313.31
  6. Step 6: Final answer
    x = 17,137.48

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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.