Home / 27,003.68-40,438.56-18,692

Finding the Fourth Proportional to 27,003.68, 40,438.56 and 18,692

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Solution

The fourth proportional to 27,003.68, 40,438.56 and 18,692 is: 27,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,003.68 : 40,438.56 = 18,692 : x
  2. Step 2: Convert to fraction form
    27,003.68/40,438.56 = 18,692/x
  3. Step 3: Cross multiply
    27,003.68x = 40,438.56 × 18,692
  4. Step 4: Simplify right side
    27,003.68x = 755,877,563.52
  5. Step 5: Solve for x
    x = 755,877,563.52/27,003.68
  6. Step 6: Final answer
    x = 27,991.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.