Home / 20,444.20-30,642.24-11,685.16

Finding the Fourth Proportional to 20,444.20, 30,642.24 and 11,685.16

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Solution

The fourth proportional to 20,444.20, 30,642.24 and 11,685.16 is: 17,513.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.20 : 30,642.24 = 11,685.16 : x
  2. Step 2: Convert to fraction form
    20,444.20/30,642.24 = 11,685.16/x
  3. Step 3: Cross multiply
    20,444.20x = 30,642.24 × 11,685.16
  4. Step 4: Simplify right side
    20,444.20x = 358,059,477.16
  5. Step 5: Solve for x
    x = 358,059,477.16/20,444.20
  6. Step 6: Final answer
    x = 17,513.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.