Home / 20,072.34-27,699.27-11,574.30

Finding the Fourth Proportional to 20,072.34, 27,699.27 and 11,574.30

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Solution

The fourth proportional to 20,072.34, 27,699.27 and 11,574.30 is: 15,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.34 : 27,699.27 = 11,574.30 : x
  2. Step 2: Convert to fraction form
    20,072.34/27,699.27 = 11,574.30/x
  3. Step 3: Cross multiply
    20,072.34x = 27,699.27 × 11,574.30
  4. Step 4: Simplify right side
    20,072.34x = 320,599,660.76
  5. Step 5: Solve for x
    x = 320,599,660.76/20,072.34
  6. Step 6: Final answer
    x = 15,972.21

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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.