Home / 18,287.12-27,430.68-4,436

Finding the Fourth Proportional to 18,287.12, 27,430.68 and 4,436

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Solution

The fourth proportional to 18,287.12, 27,430.68 and 4,436 is: 6,654.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.12 : 27,430.68 = 4,436 : x
  2. Step 2: Convert to fraction form
    18,287.12/27,430.68 = 4,436/x
  3. Step 3: Cross multiply
    18,287.12x = 27,430.68 × 4,436
  4. Step 4: Simplify right side
    18,287.12x = 121,682,496.48
  5. Step 5: Solve for x
    x = 121,682,496.48/18,287.12
  6. Step 6: Final answer
    x = 6,654.00

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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.