Home / 20,834.34-28,751.40-11,274.23

Finding the Fourth Proportional to 20,834.34, 28,751.40 and 11,274.23

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Solution

The fourth proportional to 20,834.34, 28,751.40 and 11,274.23 is: 15,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.34 : 28,751.40 = 11,274.23 : x
  2. Step 2: Convert to fraction form
    20,834.34/28,751.40 = 11,274.23/x
  3. Step 3: Cross multiply
    20,834.34x = 28,751.40 × 11,274.23
  4. Step 4: Simplify right side
    20,834.34x = 324,149,752.67
  5. Step 5: Solve for x
    x = 324,149,752.67/20,834.34
  6. Step 6: Final answer
    x = 15,558.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.