Home / 20,020.12-27,629.82-14,434.36

Finding the Fourth Proportional to 20,020.12, 27,629.82 and 14,434.36

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Solution

The fourth proportional to 20,020.12, 27,629.82 and 14,434.36 is: 19,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.12 : 27,629.82 = 14,434.36 : x
  2. Step 2: Convert to fraction form
    20,020.12/27,629.82 = 14,434.36/x
  3. Step 3: Cross multiply
    20,020.12x = 27,629.82 × 14,434.36
  4. Step 4: Simplify right side
    20,020.12x = 398,818,768.62
  5. Step 5: Solve for x
    x = 398,818,768.62/20,020.12
  6. Step 6: Final answer
    x = 19,920.90

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1.5x scale

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.