Home / 31,379.62-43,310.01-19,448.26

Finding the Fourth Proportional to 31,379.62, 43,310.01 and 19,448.26

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Solution

The fourth proportional to 31,379.62, 43,310.01 and 19,448.26 is: 26,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.62 : 43,310.01 = 19,448.26 : x
  2. Step 2: Convert to fraction form
    31,379.62/43,310.01 = 19,448.26/x
  3. Step 3: Cross multiply
    31,379.62x = 43,310.01 × 19,448.26
  4. Step 4: Simplify right side
    31,379.62x = 842,304,335.08
  5. Step 5: Solve for x
    x = 842,304,335.08/31,379.62
  6. Step 6: Final answer
    x = 26,842.40

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1.5x scale

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.