Home / 20,834.35-28,751.74-11,760.18

Finding the Fourth Proportional to 20,834.35, 28,751.74 and 11,760.18

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Solution

The fourth proportional to 20,834.35, 28,751.74 and 11,760.18 is: 16,229.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.35 : 28,751.74 = 11,760.18 : x
  2. Step 2: Convert to fraction form
    20,834.35/28,751.74 = 11,760.18/x
  3. Step 3: Cross multiply
    20,834.35x = 28,751.74 × 11,760.18
  4. Step 4: Simplify right side
    20,834.35x = 338,125,637.71
  5. Step 5: Solve for x
    x = 338,125,637.71/20,834.35
  6. Step 6: Final answer
    x = 16,229.24

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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.