Home / 27,427.28-41,134.74-12,621.98

Finding the Fourth Proportional to 27,427.28, 41,134.74 and 12,621.98

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Solution

The fourth proportional to 27,427.28, 41,134.74 and 12,621.98 is: 18,930.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,427.28 : 41,134.74 = 12,621.98 : x
  2. Step 2: Convert to fraction form
    27,427.28/41,134.74 = 12,621.98/x
  3. Step 3: Cross multiply
    27,427.28x = 41,134.74 × 12,621.98
  4. Step 4: Simplify right side
    27,427.28x = 519,201,865.59
  5. Step 5: Solve for x
    x = 519,201,865.59/27,427.28
  6. Step 6: Final answer
    x = 18,930.13

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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.