Home / 20,040.98-27,651.58-12,958.88

Finding the Fourth Proportional to 20,040.98, 27,651.58 and 12,958.88

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Solution

The fourth proportional to 20,040.98, 27,651.58 and 12,958.88 is: 17,880.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.98 : 27,651.58 = 12,958.88 : x
  2. Step 2: Convert to fraction form
    20,040.98/27,651.58 = 12,958.88/x
  3. Step 3: Cross multiply
    20,040.98x = 27,651.58 × 12,958.88
  4. Step 4: Simplify right side
    20,040.98x = 358,333,442.24
  5. Step 5: Solve for x
    x = 358,333,442.24/20,040.98
  6. Step 6: Final answer
    x = 17,880.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.