Home / 22,355.82-30,849.48-13,398.84

Finding the Fourth Proportional to 22,355.82, 30,849.48 and 13,398.84

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Solution

The fourth proportional to 22,355.82, 30,849.48 and 13,398.84 is: 18,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,355.82 : 30,849.48 = 13,398.84 : x
  2. Step 2: Convert to fraction form
    22,355.82/30,849.48 = 13,398.84/x
  3. Step 3: Cross multiply
    22,355.82x = 30,849.48 × 13,398.84
  4. Step 4: Simplify right side
    22,355.82x = 413,347,246.60
  5. Step 5: Solve for x
    x = 413,347,246.60/22,355.82
  6. Step 6: Final answer
    x = 18,489.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.