Home / 20,301.94-28,017.30-11,349.82

Finding the Fourth Proportional to 20,301.94, 28,017.30 and 11,349.82

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Solution

The fourth proportional to 20,301.94, 28,017.30 and 11,349.82 is: 15,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.94 : 28,017.30 = 11,349.82 : x
  2. Step 2: Convert to fraction form
    20,301.94/28,017.30 = 11,349.82/x
  3. Step 3: Cross multiply
    20,301.94x = 28,017.30 × 11,349.82
  4. Step 4: Simplify right side
    20,301.94x = 317,991,311.89
  5. Step 5: Solve for x
    x = 317,991,311.89/20,301.94
  6. Step 6: Final answer
    x = 15,663.10

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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.