Home / 20,834.52-28,750.53-11,401.26

Finding the Fourth Proportional to 20,834.52, 28,750.53 and 11,401.26

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Solution

The fourth proportional to 20,834.52, 28,750.53 and 11,401.26 is: 15,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.52 : 28,750.53 = 11,401.26 : x
  2. Step 2: Convert to fraction form
    20,834.52/28,750.53 = 11,401.26/x
  3. Step 3: Cross multiply
    20,834.52x = 28,750.53 × 11,401.26
  4. Step 4: Simplify right side
    20,834.52x = 327,792,267.67
  5. Step 5: Solve for x
    x = 327,792,267.67/20,834.52
  6. Step 6: Final answer
    x = 15,733.13

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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.