Home / 39,147.45-58,699.17-12,849.99

Finding the Fourth Proportional to 39,147.45, 58,699.17 and 12,849.99

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Solution

The fourth proportional to 39,147.45, 58,699.17 and 12,849.99 is: 19,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,147.45 : 58,699.17 = 12,849.99 : x
  2. Step 2: Convert to fraction form
    39,147.45/58,699.17 = 12,849.99/x
  3. Step 3: Cross multiply
    39,147.45x = 58,699.17 × 12,849.99
  4. Step 4: Simplify right side
    39,147.45x = 754,283,747.51
  5. Step 5: Solve for x
    x = 754,283,747.51/39,147.45
  6. Step 6: Final answer
    x = 19,267.76

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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.