Home / 27,971.34-41,963.16-12,178.89

Finding the Fourth Proportional to 27,971.34, 41,963.16 and 12,178.89

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Solution

The fourth proportional to 27,971.34, 41,963.16 and 12,178.89 is: 18,271.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,971.34 : 41,963.16 = 12,178.89 : x
  2. Step 2: Convert to fraction form
    27,971.34/41,963.16 = 12,178.89/x
  3. Step 3: Cross multiply
    27,971.34x = 41,963.16 × 12,178.89
  4. Step 4: Simplify right side
    27,971.34x = 511,064,709.69
  5. Step 5: Solve for x
    x = 511,064,709.69/27,971.34
  6. Step 6: Final answer
    x = 18,271.01

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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.