Home / 20,151.48-30,216.84-9,048.68

Finding the Fourth Proportional to 20,151.48, 30,216.84 and 9,048.68

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Solution

The fourth proportional to 20,151.48, 30,216.84 and 9,048.68 is: 13,568.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.48 : 30,216.84 = 9,048.68 : x
  2. Step 2: Convert to fraction form
    20,151.48/30,216.84 = 9,048.68/x
  3. Step 3: Cross multiply
    20,151.48x = 30,216.84 × 9,048.68
  4. Step 4: Simplify right side
    20,151.48x = 273,422,515.77
  5. Step 5: Solve for x
    x = 273,422,515.77/20,151.48
  6. Step 6: Final answer
    x = 13,568.36

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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.