Home / 31,032-46,542.40-13,272.64

Finding the Fourth Proportional to 31,032, 46,542.40 and 13,272.64

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Solution

The fourth proportional to 31,032, 46,542.40 and 13,272.64 is: 19,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,032 : 46,542.40 = 13,272.64 : x
  2. Step 2: Convert to fraction form
    31,032/46,542.40 = 13,272.64/x
  3. Step 3: Cross multiply
    31,032x = 46,542.40 × 13,272.64
  4. Step 4: Simplify right side
    31,032x = 617,740,370.40
  5. Step 5: Solve for x
    x = 617,740,370.40/31,032
  6. Step 6: Final answer
    x = 19,906.56

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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.