Home / 39,115.82-58,687.17-11,417.90

Finding the Fourth Proportional to 39,115.82, 58,687.17 and 11,417.90

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Solution

The fourth proportional to 39,115.82, 58,687.17 and 11,417.90 is: 17,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,115.82 : 58,687.17 = 11,417.90 : x
  2. Step 2: Convert to fraction form
    39,115.82/58,687.17 = 11,417.90/x
  3. Step 3: Cross multiply
    39,115.82x = 58,687.17 × 11,417.90
  4. Step 4: Simplify right side
    39,115.82x = 670,084,238.34
  5. Step 5: Solve for x
    x = 670,084,238.34/39,115.82
  6. Step 6: Final answer
    x = 17,130.77

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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.