Home / 20,398.25-30,606.79-9,308.33

Finding the Fourth Proportional to 20,398.25, 30,606.79 and 9,308.33

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Solution

The fourth proportional to 20,398.25, 30,606.79 and 9,308.33 is: 13,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,398.25 : 30,606.79 = 9,308.33 : x
  2. Step 2: Convert to fraction form
    20,398.25/30,606.79 = 9,308.33/x
  3. Step 3: Cross multiply
    20,398.25x = 30,606.79 × 9,308.33
  4. Step 4: Simplify right side
    20,398.25x = 284,898,154.81
  5. Step 5: Solve for x
    x = 284,898,154.81/20,398.25
  6. Step 6: Final answer
    x = 13,966.80

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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.