Home / 20,834.53-28,750.55-11,401.27

Finding the Fourth Proportional to 20,834.53, 28,750.55 and 11,401.27

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Solution

The fourth proportional to 20,834.53, 28,750.55 and 11,401.27 is: 15,733.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.53 : 28,750.55 = 11,401.27 : x
  2. Step 2: Convert to fraction form
    20,834.53/28,750.55 = 11,401.27/x
  3. Step 3: Cross multiply
    20,834.53x = 28,750.55 × 11,401.27
  4. Step 4: Simplify right side
    20,834.53x = 327,792,654.32
  5. Step 5: Solve for x
    x = 327,792,654.32/20,834.53
  6. Step 6: Final answer
    x = 15,733.15

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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.