Home / 39,431.73-59,143.59-13,133.64

Finding the Fourth Proportional to 39,431.73, 59,143.59 and 13,133.64

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Solution

The fourth proportional to 39,431.73, 59,143.59 and 13,133.64 is: 19,699.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.73 : 59,143.59 = 13,133.64 : x
  2. Step 2: Convert to fraction form
    39,431.73/59,143.59 = 13,133.64/x
  3. Step 3: Cross multiply
    39,431.73x = 59,143.59 × 13,133.64
  4. Step 4: Simplify right side
    39,431.73x = 776,770,619.37
  5. Step 5: Solve for x
    x = 776,770,619.37/39,431.73
  6. Step 6: Final answer
    x = 19,699.13

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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.