Home / 27,985.12-41,984.94-12,399.04

Finding the Fourth Proportional to 27,985.12, 41,984.94 and 12,399.04

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Solution

The fourth proportional to 27,985.12, 41,984.94 and 12,399.04 is: 18,601.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,985.12 : 41,984.94 = 12,399.04 : x
  2. Step 2: Convert to fraction form
    27,985.12/41,984.94 = 12,399.04/x
  3. Step 3: Cross multiply
    27,985.12x = 41,984.94 × 12,399.04
  4. Step 4: Simplify right side
    27,985.12x = 520,572,950.46
  5. Step 5: Solve for x
    x = 520,572,950.46/27,985.12
  6. Step 6: Final answer
    x = 18,601.78

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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.