Home / 20,022.88-29,982.48-13,802.08

Finding the Fourth Proportional to 20,022.88, 29,982.48 and 13,802.08

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Solution

The fourth proportional to 20,022.88, 29,982.48 and 13,802.08 is: 20,667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.88 : 29,982.48 = 13,802.08 : x
  2. Step 2: Convert to fraction form
    20,022.88/29,982.48 = 13,802.08/x
  3. Step 3: Cross multiply
    20,022.88x = 29,982.48 × 13,802.08
  4. Step 4: Simplify right side
    20,022.88x = 413,820,587.56
  5. Step 5: Solve for x
    x = 413,820,587.56/20,022.88
  6. Step 6: Final answer
    x = 20,667.39

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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.