Home / 20,744.82-28,628.21-11,313.46

Finding the Fourth Proportional to 20,744.82, 28,628.21 and 11,313.46

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Solution

The fourth proportional to 20,744.82, 28,628.21 and 11,313.46 is: 15,612.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.82 : 28,628.21 = 11,313.46 : x
  2. Step 2: Convert to fraction form
    20,744.82/28,628.21 = 11,313.46/x
  3. Step 3: Cross multiply
    20,744.82x = 28,628.21 × 11,313.46
  4. Step 4: Simplify right side
    20,744.82x = 323,884,108.71
  5. Step 5: Solve for x
    x = 323,884,108.71/20,744.82
  6. Step 6: Final answer
    x = 15,612.77

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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.