Home / 20,345.14-30,517.73-9,813.21

Finding the Fourth Proportional to 20,345.14, 30,517.73 and 9,813.21

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Solution

The fourth proportional to 20,345.14, 30,517.73 and 9,813.21 is: 14,719.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,345.14 : 30,517.73 = 9,813.21 : x
  2. Step 2: Convert to fraction form
    20,345.14/30,517.73 = 9,813.21/x
  3. Step 3: Cross multiply
    20,345.14x = 30,517.73 × 9,813.21
  4. Step 4: Simplify right side
    20,345.14x = 299,476,893.21
  5. Step 5: Solve for x
    x = 299,476,893.21/20,345.14
  6. Step 6: Final answer
    x = 14,719.82

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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.