Home / 20,496.60-30,690.18-13,060.80

Finding the Fourth Proportional to 20,496.60, 30,690.18 and 13,060.80

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Solution

The fourth proportional to 20,496.60, 30,690.18 and 13,060.80 is: 19,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.60 : 30,690.18 = 13,060.80 : x
  2. Step 2: Convert to fraction form
    20,496.60/30,690.18 = 13,060.80/x
  3. Step 3: Cross multiply
    20,496.60x = 30,690.18 × 13,060.80
  4. Step 4: Simplify right side
    20,496.60x = 400,838,302.94
  5. Step 5: Solve for x
    x = 400,838,302.94/20,496.60
  6. Step 6: Final answer
    x = 19,556.33

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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.