Home / 31,506.26-43,478.62-18,935.06

Finding the Fourth Proportional to 31,506.26, 43,478.62 and 18,935.06

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Solution

The fourth proportional to 31,506.26, 43,478.62 and 18,935.06 is: 26,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,506.26 : 43,478.62 = 18,935.06 : x
  2. Step 2: Convert to fraction form
    31,506.26/43,478.62 = 18,935.06/x
  3. Step 3: Cross multiply
    31,506.26x = 43,478.62 × 18,935.06
  4. Step 4: Simplify right side
    31,506.26x = 823,270,278.42
  5. Step 5: Solve for x
    x = 823,270,278.42/31,506.26
  6. Step 6: Final answer
    x = 26,130.37

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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.