Home / 31,369.45-43,270.82-18,614.23

Finding the Fourth Proportional to 31,369.45, 43,270.82 and 18,614.23

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Solution

The fourth proportional to 31,369.45, 43,270.82 and 18,614.23 is: 25,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.45 : 43,270.82 = 18,614.23 : x
  2. Step 2: Convert to fraction form
    31,369.45/43,270.82 = 18,614.23/x
  3. Step 3: Cross multiply
    31,369.45x = 43,270.82 × 18,614.23
  4. Step 4: Simplify right side
    31,369.45x = 805,452,995.77
  5. Step 5: Solve for x
    x = 805,452,995.77/31,369.45
  6. Step 6: Final answer
    x = 25,676.35

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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.