Home / 20,019.88-29,977.98-13,799.08

Finding the Fourth Proportional to 20,019.88, 29,977.98 and 13,799.08

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Solution

The fourth proportional to 20,019.88, 29,977.98 and 13,799.08 is: 20,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.88 : 29,977.98 = 13,799.08 : x
  2. Step 2: Convert to fraction form
    20,019.88/29,977.98 = 13,799.08/x
  3. Step 3: Cross multiply
    20,019.88x = 29,977.98 × 13,799.08
  4. Step 4: Simplify right side
    20,019.88x = 413,668,544.26
  5. Step 5: Solve for x
    x = 413,668,544.26/20,019.88
  6. Step 6: Final answer
    x = 20,662.89

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1.5x scale

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.