Home / 20,362.76-28,101.94-11,409.96

Finding the Fourth Proportional to 20,362.76, 28,101.94 and 11,409.96

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Solution

The fourth proportional to 20,362.76, 28,101.94 and 11,409.96 is: 15,746.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.76 : 28,101.94 = 11,409.96 : x
  2. Step 2: Convert to fraction form
    20,362.76/28,101.94 = 11,409.96/x
  3. Step 3: Cross multiply
    20,362.76x = 28,101.94 × 11,409.96
  4. Step 4: Simplify right side
    20,362.76x = 320,642,011.32
  5. Step 5: Solve for x
    x = 320,642,011.32/20,362.76
  6. Step 6: Final answer
    x = 15,746.49

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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.