Home / 20,159.64-27,821.33-11,207.32

Finding the Fourth Proportional to 20,159.64, 27,821.33 and 11,207.32

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Solution

The fourth proportional to 20,159.64, 27,821.33 and 11,207.32 is: 15,466.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.64 : 27,821.33 = 11,207.32 : x
  2. Step 2: Convert to fraction form
    20,159.64/27,821.33 = 11,207.32/x
  3. Step 3: Cross multiply
    20,159.64x = 27,821.33 × 11,207.32
  4. Step 4: Simplify right side
    20,159.64x = 311,802,548.14
  5. Step 5: Solve for x
    x = 311,802,548.14/20,159.64
  6. Step 6: Final answer
    x = 15,466.67

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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.