Home / 39,966.44-59,942.82-13,309.40

Finding the Fourth Proportional to 39,966.44, 59,942.82 and 13,309.40

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Solution

The fourth proportional to 39,966.44, 59,942.82 and 13,309.40 is: 19,961.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,966.44 : 59,942.82 = 13,309.40 : x
  2. Step 2: Convert to fraction form
    39,966.44/59,942.82 = 13,309.40/x
  3. Step 3: Cross multiply
    39,966.44x = 59,942.82 × 13,309.40
  4. Step 4: Simplify right side
    39,966.44x = 797,802,968.51
  5. Step 5: Solve for x
    x = 797,802,968.51/39,966.44
  6. Step 6: Final answer
    x = 19,961.82

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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.