Home / 20,226.02-30,315.21-9,119.71

Finding the Fourth Proportional to 20,226.02, 30,315.21 and 9,119.71

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Solution

The fourth proportional to 20,226.02, 30,315.21 and 9,119.71 is: 13,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.02 : 30,315.21 = 9,119.71 : x
  2. Step 2: Convert to fraction form
    20,226.02/30,315.21 = 9,119.71/x
  3. Step 3: Cross multiply
    20,226.02x = 30,315.21 × 9,119.71
  4. Step 4: Simplify right side
    20,226.02x = 276,465,848.00
  5. Step 5: Solve for x
    x = 276,465,848.00/20,226.02
  6. Step 6: Final answer
    x = 13,668.82

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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.