Home / 31,429.51-43,369.08-17,999.96

Finding the Fourth Proportional to 31,429.51, 43,369.08 and 17,999.96

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Solution

The fourth proportional to 31,429.51, 43,369.08 and 17,999.96 is: 24,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,429.51 : 43,369.08 = 17,999.96 : x
  2. Step 2: Convert to fraction form
    31,429.51/43,369.08 = 17,999.96/x
  3. Step 3: Cross multiply
    31,429.51x = 43,369.08 × 17,999.96
  4. Step 4: Simplify right side
    31,429.51x = 780,641,651.03
  5. Step 5: Solve for x
    x = 780,641,651.03/31,429.51
  6. Step 6: Final answer
    x = 24,837.86

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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.