Home / 20,834.48-28,751.56-11,403.04

Finding the Fourth Proportional to 20,834.48, 28,751.56 and 11,403.04

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Solution

The fourth proportional to 20,834.48, 28,751.56 and 11,403.04 is: 15,736.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.48 : 28,751.56 = 11,403.04 : x
  2. Step 2: Convert to fraction form
    20,834.48/28,751.56 = 11,403.04/x
  3. Step 3: Cross multiply
    20,834.48x = 28,751.56 × 11,403.04
  4. Step 4: Simplify right side
    20,834.48x = 327,855,188.74
  5. Step 5: Solve for x
    x = 327,855,188.74/20,834.48
  6. Step 6: Final answer
    x = 15,736.18

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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.