Home / 20,744.96-28,627.74-11,313.50

Finding the Fourth Proportional to 20,744.96, 28,627.74 and 11,313.50

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Solution

The fourth proportional to 20,744.96, 28,627.74 and 11,313.50 is: 15,612.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.96 : 28,627.74 = 11,313.50 : x
  2. Step 2: Convert to fraction form
    20,744.96/28,627.74 = 11,313.50/x
  3. Step 3: Cross multiply
    20,744.96x = 28,627.74 × 11,313.50
  4. Step 4: Simplify right side
    20,744.96x = 323,879,936.49
  5. Step 5: Solve for x
    x = 323,879,936.49/20,744.96
  6. Step 6: Final answer
    x = 15,612.46

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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.