Home / 27,420.38-41,147.58-12,631.40

Finding the Fourth Proportional to 27,420.38, 41,147.58 and 12,631.40

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Solution

The fourth proportional to 27,420.38, 41,147.58 and 12,631.40 is: 18,954.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.38 : 41,147.58 = 12,631.40 : x
  2. Step 2: Convert to fraction form
    27,420.38/41,147.58 = 12,631.40/x
  3. Step 3: Cross multiply
    27,420.38x = 41,147.58 × 12,631.40
  4. Step 4: Simplify right side
    27,420.38x = 519,751,542.01
  5. Step 5: Solve for x
    x = 519,751,542.01/27,420.38
  6. Step 6: Final answer
    x = 18,954.94

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1.5x scale

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.