Home / 22,980.11-31,713.53-12,908.36

Finding the Fourth Proportional to 22,980.11, 31,713.53 and 12,908.36

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Solution

The fourth proportional to 22,980.11, 31,713.53 and 12,908.36 is: 17,814.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,980.11 : 31,713.53 = 12,908.36 : x
  2. Step 2: Convert to fraction form
    22,980.11/31,713.53 = 12,908.36/x
  3. Step 3: Cross multiply
    22,980.11x = 31,713.53 × 12,908.36
  4. Step 4: Simplify right side
    22,980.11x = 409,369,676.85
  5. Step 5: Solve for x
    x = 409,369,676.85/22,980.11
  6. Step 6: Final answer
    x = 17,814.09

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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.