Home / 20,834.25-31,212.09-10,291.92

Finding the Fourth Proportional to 20,834.25, 31,212.09 and 10,291.92

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Solution

The fourth proportional to 20,834.25, 31,212.09 and 10,291.92 is: 15,418.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.25 : 31,212.09 = 10,291.92 : x
  2. Step 2: Convert to fraction form
    20,834.25/31,212.09 = 10,291.92/x
  3. Step 3: Cross multiply
    20,834.25x = 31,212.09 × 10,291.92
  4. Step 4: Simplify right side
    20,834.25x = 321,232,333.31
  5. Step 5: Solve for x
    x = 321,232,333.31/20,834.25
  6. Step 6: Final answer
    x = 15,418.47

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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.