Home / 20,156.20-30,246.46-7,017.80

Finding the Fourth Proportional to 20,156.20, 30,246.46 and 7,017.80

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Solution

The fourth proportional to 20,156.20, 30,246.46 and 7,017.80 is: 10,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.20 : 30,246.46 = 7,017.80 : x
  2. Step 2: Convert to fraction form
    20,156.20/30,246.46 = 7,017.80/x
  3. Step 3: Cross multiply
    20,156.20x = 30,246.46 × 7,017.80
  4. Step 4: Simplify right side
    20,156.20x = 212,263,606.99
  5. Step 5: Solve for x
    x = 212,263,606.99/20,156.20
  6. Step 6: Final answer
    x = 10,530.93

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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.