Home / 20,914.34-28,861.85-11,483.51

Finding the Fourth Proportional to 20,914.34, 28,861.85 and 11,483.51

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Solution

The fourth proportional to 20,914.34, 28,861.85 and 11,483.51 is: 15,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.34 : 28,861.85 = 11,483.51 : x
  2. Step 2: Convert to fraction form
    20,914.34/28,861.85 = 11,483.51/x
  3. Step 3: Cross multiply
    20,914.34x = 28,861.85 × 11,483.51
  4. Step 4: Simplify right side
    20,914.34x = 331,435,357.83
  5. Step 5: Solve for x
    x = 331,435,357.83/20,914.34
  6. Step 6: Final answer
    x = 15,847.28

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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.