Home / 20,009.60-30,125.20-17,682.96

Finding the Fourth Proportional to 20,009.60, 30,125.20 and 17,682.96

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Solution

The fourth proportional to 20,009.60, 30,125.20 and 17,682.96 is: 26,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.60 : 30,125.20 = 17,682.96 : x
  2. Step 2: Convert to fraction form
    20,009.60/30,125.20 = 17,682.96/x
  3. Step 3: Cross multiply
    20,009.60x = 30,125.20 × 17,682.96
  4. Step 4: Simplify right side
    20,009.60x = 532,702,706.59
  5. Step 5: Solve for x
    x = 532,702,706.59/20,009.60
  6. Step 6: Final answer
    x = 26,622.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.