Home / 20,625.60-30,938.22-7,473

Finding the Fourth Proportional to 20,625.60, 30,938.22 and 7,473

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Solution

The fourth proportional to 20,625.60, 30,938.22 and 7,473 is: 11,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.60 : 30,938.22 = 7,473 : x
  2. Step 2: Convert to fraction form
    20,625.60/30,938.22 = 7,473/x
  3. Step 3: Cross multiply
    20,625.60x = 30,938.22 × 7,473
  4. Step 4: Simplify right side
    20,625.60x = 231,201,318.06
  5. Step 5: Solve for x
    x = 231,201,318.06/20,625.60
  6. Step 6: Final answer
    x = 11,209.43

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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.