Home / 20,228.32-27,914.14-11,276.67

Finding the Fourth Proportional to 20,228.32, 27,914.14 and 11,276.67

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Solution

The fourth proportional to 20,228.32, 27,914.14 and 11,276.67 is: 15,561.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.32 : 27,914.14 = 11,276.67 : x
  2. Step 2: Convert to fraction form
    20,228.32/27,914.14 = 11,276.67/x
  3. Step 3: Cross multiply
    20,228.32x = 27,914.14 × 11,276.67
  4. Step 4: Simplify right side
    20,228.32x = 314,778,488.73
  5. Step 5: Solve for x
    x = 314,778,488.73/20,228.32
  6. Step 6: Final answer
    x = 15,561.28

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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.