Home / 20,024.81-27,631.81-11,071.09

Finding the Fourth Proportional to 20,024.81, 27,631.81 and 11,071.09

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Solution

The fourth proportional to 20,024.81, 27,631.81 and 11,071.09 is: 15,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,024.81 : 27,631.81 = 11,071.09 : x
  2. Step 2: Convert to fraction form
    20,024.81/27,631.81 = 11,071.09/x
  3. Step 3: Cross multiply
    20,024.81x = 27,631.81 × 11,071.09
  4. Step 4: Simplify right side
    20,024.81x = 305,914,255.37
  5. Step 5: Solve for x
    x = 305,914,255.37/20,024.81
  6. Step 6: Final answer
    x = 15,276.76

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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.