Home / 31,869.04-43,971.24-19,291.36

Finding the Fourth Proportional to 31,869.04, 43,971.24 and 19,291.36

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Solution

The fourth proportional to 31,869.04, 43,971.24 and 19,291.36 is: 26,617.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,869.04 : 43,971.24 = 19,291.36 : x
  2. Step 2: Convert to fraction form
    31,869.04/43,971.24 = 19,291.36/x
  3. Step 3: Cross multiply
    31,869.04x = 43,971.24 × 19,291.36
  4. Step 4: Simplify right side
    31,869.04x = 848,265,020.49
  5. Step 5: Solve for x
    x = 848,265,020.49/31,869.04
  6. Step 6: Final answer
    x = 26,617.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.