Home / 20,398.05-30,601.94-9,308.07

Finding the Fourth Proportional to 20,398.05, 30,601.94 and 9,308.07

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Solution

The fourth proportional to 20,398.05, 30,601.94 and 9,308.07 is: 13,964.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,398.05 : 30,601.94 = 9,308.07 : x
  2. Step 2: Convert to fraction form
    20,398.05/30,601.94 = 9,308.07/x
  3. Step 3: Cross multiply
    20,398.05x = 30,601.94 × 9,308.07
  4. Step 4: Simplify right side
    20,398.05x = 284,844,953.12
  5. Step 5: Solve for x
    x = 284,844,953.12/20,398.05
  6. Step 6: Final answer
    x = 13,964.32

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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.