Home / 27,982.12-42,002.36-12,410.68

Finding the Fourth Proportional to 27,982.12, 42,002.36 and 12,410.68

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Solution

The fourth proportional to 27,982.12, 42,002.36 and 12,410.68 is: 18,628.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,982.12 : 42,002.36 = 12,410.68 : x
  2. Step 2: Convert to fraction form
    27,982.12/42,002.36 = 12,410.68/x
  3. Step 3: Cross multiply
    27,982.12x = 42,002.36 × 12,410.68
  4. Step 4: Simplify right side
    27,982.12x = 521,277,849.20
  5. Step 5: Solve for x
    x = 521,277,849.20/27,982.12
  6. Step 6: Final answer
    x = 18,628.96

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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.