Home / 20,894.67-31,370.09-20,674.35

Finding the Fourth Proportional to 20,894.67, 31,370.09 and 20,674.35

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Solution

The fourth proportional to 20,894.67, 31,370.09 and 20,674.35 is: 31,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.67 : 31,370.09 = 20,674.35 : x
  2. Step 2: Convert to fraction form
    20,894.67/31,370.09 = 20,674.35/x
  3. Step 3: Cross multiply
    20,894.67x = 31,370.09 × 20,674.35
  4. Step 4: Simplify right side
    20,894.67x = 648,556,116.82
  5. Step 5: Solve for x
    x = 648,556,116.82/20,894.67
  6. Step 6: Final answer
    x = 31,039.31

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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.