Home / 20,167.60-30,251.40-13,150.98

Finding the Fourth Proportional to 20,167.60, 30,251.40 and 13,150.98

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Solution

The fourth proportional to 20,167.60, 30,251.40 and 13,150.98 is: 19,726.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.60 : 30,251.40 = 13,150.98 : x
  2. Step 2: Convert to fraction form
    20,167.60/30,251.40 = 13,150.98/x
  3. Step 3: Cross multiply
    20,167.60x = 30,251.40 × 13,150.98
  4. Step 4: Simplify right side
    20,167.60x = 397,835,556.37
  5. Step 5: Solve for x
    x = 397,835,556.37/20,167.60
  6. Step 6: Final answer
    x = 19,726.47

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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.