Home / 20,965.74-31,412.41-14,713.85

Finding the Fourth Proportional to 20,965.74, 31,412.41 and 14,713.85

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Solution

The fourth proportional to 20,965.74, 31,412.41 and 14,713.85 is: 22,045.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,965.74 : 31,412.41 = 14,713.85 : x
  2. Step 2: Convert to fraction form
    20,965.74/31,412.41 = 14,713.85/x
  3. Step 3: Cross multiply
    20,965.74x = 31,412.41 × 14,713.85
  4. Step 4: Simplify right side
    20,965.74x = 462,197,530.62
  5. Step 5: Solve for x
    x = 462,197,530.62/20,965.74
  6. Step 6: Final answer
    x = 22,045.38

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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.