Home / 20,168.63-30,254.54-6,129.87

Finding the Fourth Proportional to 20,168.63, 30,254.54 and 6,129.87

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Solution

The fourth proportional to 20,168.63, 30,254.54 and 6,129.87 is: 9,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.63 : 30,254.54 = 6,129.87 : x
  2. Step 2: Convert to fraction form
    20,168.63/30,254.54 = 6,129.87/x
  3. Step 3: Cross multiply
    20,168.63x = 30,254.54 × 6,129.87
  4. Step 4: Simplify right side
    20,168.63x = 185,456,366.46
  5. Step 5: Solve for x
    x = 185,456,366.46/20,168.63
  6. Step 6: Final answer
    x = 9,195.29

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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.