Home / 31,998-47,976.47-13,290.96

Finding the Fourth Proportional to 31,998, 47,976.47 and 13,290.96

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Solution

The fourth proportional to 31,998, 47,976.47 and 13,290.96 is: 19,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,998 : 47,976.47 = 13,290.96 : x
  2. Step 2: Convert to fraction form
    31,998/47,976.47 = 13,290.96/x
  3. Step 3: Cross multiply
    31,998x = 47,976.47 × 13,290.96
  4. Step 4: Simplify right side
    31,998x = 637,653,277.26
  5. Step 5: Solve for x
    x = 637,653,277.26/31,998
  6. Step 6: Final answer
    x = 19,927.91

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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.