Home / 27,001.98-40,485.30-12,961.62

Finding the Fourth Proportional to 27,001.98, 40,485.30 and 12,961.62

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Solution

The fourth proportional to 27,001.98, 40,485.30 and 12,961.62 is: 19,433.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,001.98 : 40,485.30 = 12,961.62 : x
  2. Step 2: Convert to fraction form
    27,001.98/40,485.30 = 12,961.62/x
  3. Step 3: Cross multiply
    27,001.98x = 40,485.30 × 12,961.62
  4. Step 4: Simplify right side
    27,001.98x = 524,755,074.19
  5. Step 5: Solve for x
    x = 524,755,074.19/27,001.98
  6. Step 6: Final answer
    x = 19,433.95

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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.