Home / 20,264.12-30,406.88-14,379.03

Finding the Fourth Proportional to 20,264.12, 30,406.88 and 14,379.03

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Solution

The fourth proportional to 20,264.12, 30,406.88 and 14,379.03 is: 21,576.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.12 : 30,406.88 = 14,379.03 : x
  2. Step 2: Convert to fraction form
    20,264.12/30,406.88 = 14,379.03/x
  3. Step 3: Cross multiply
    20,264.12x = 30,406.88 × 14,379.03
  4. Step 4: Simplify right side
    20,264.12x = 437,221,367.83
  5. Step 5: Solve for x
    x = 437,221,367.83/20,264.12
  6. Step 6: Final answer
    x = 21,576.14

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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.