Home / 13,282.06-19,923.90-3,421.66

Finding the Fourth Proportional to 13,282.06, 19,923.90 and 3,421.66

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Solution

The fourth proportional to 13,282.06, 19,923.90 and 3,421.66 is: 5,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.06 : 19,923.90 = 3,421.66 : x
  2. Step 2: Convert to fraction form
    13,282.06/19,923.90 = 3,421.66/x
  3. Step 3: Cross multiply
    13,282.06x = 19,923.90 × 3,421.66
  4. Step 4: Simplify right side
    13,282.06x = 68,172,811.67
  5. Step 5: Solve for x
    x = 68,172,811.67/13,282.06
  6. Step 6: Final answer
    x = 5,132.70

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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.