Home / 20,151.99-30,228.12-7,004.61

Finding the Fourth Proportional to 20,151.99, 30,228.12 and 7,004.61

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Solution

The fourth proportional to 20,151.99, 30,228.12 and 7,004.61 is: 10,506.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.99 : 30,228.12 = 7,004.61 : x
  2. Step 2: Convert to fraction form
    20,151.99/30,228.12 = 7,004.61/x
  3. Step 3: Cross multiply
    20,151.99x = 30,228.12 × 7,004.61
  4. Step 4: Simplify right side
    20,151.99x = 211,736,191.63
  5. Step 5: Solve for x
    x = 211,736,191.63/20,151.99
  6. Step 6: Final answer
    x = 10,506.96

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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.