Home / 20,130.55-30,196.13-6,983.24

Finding the Fourth Proportional to 20,130.55, 30,196.13 and 6,983.24

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Solution

The fourth proportional to 20,130.55, 30,196.13 and 6,983.24 is: 10,474.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130.55 : 30,196.13 = 6,983.24 : x
  2. Step 2: Convert to fraction form
    20,130.55/30,196.13 = 6,983.24/x
  3. Step 3: Cross multiply
    20,130.55x = 30,196.13 × 6,983.24
  4. Step 4: Simplify right side
    20,130.55x = 210,866,636.96
  5. Step 5: Solve for x
    x = 210,866,636.96/20,130.55
  6. Step 6: Final answer
    x = 10,474.96

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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.