Home / 39,939.48-59,918.45-11,858.91

Finding the Fourth Proportional to 39,939.48, 59,918.45 and 11,858.91

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Solution

The fourth proportional to 39,939.48, 59,918.45 and 11,858.91 is: 17,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,939.48 : 59,918.45 = 11,858.91 : x
  2. Step 2: Convert to fraction form
    39,939.48/59,918.45 = 11,858.91/x
  3. Step 3: Cross multiply
    39,939.48x = 59,918.45 × 11,858.91
  4. Step 4: Simplify right side
    39,939.48x = 710,567,446.59
  5. Step 5: Solve for x
    x = 710,567,446.59/39,939.48
  6. Step 6: Final answer
    x = 17,791.10

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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.