Home / 14,020.20-21,030.84-3,631.68

Finding the Fourth Proportional to 14,020.20, 21,030.84 and 3,631.68

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Solution

The fourth proportional to 14,020.20, 21,030.84 and 3,631.68 is: 5,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.20 : 21,030.84 = 3,631.68 : x
  2. Step 2: Convert to fraction form
    14,020.20/21,030.84 = 3,631.68/x
  3. Step 3: Cross multiply
    14,020.20x = 21,030.84 × 3,631.68
  4. Step 4: Simplify right side
    14,020.20x = 76,377,281.01
  5. Step 5: Solve for x
    x = 76,377,281.01/14,020.20
  6. Step 6: Final answer
    x = 5,447.66

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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.