Home / 31,813.70-43,902.81-17,666.51

Finding the Fourth Proportional to 31,813.70, 43,902.81 and 17,666.51

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Solution

The fourth proportional to 31,813.70, 43,902.81 and 17,666.51 is: 24,379.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,813.70 : 43,902.81 = 17,666.51 : x
  2. Step 2: Convert to fraction form
    31,813.70/43,902.81 = 17,666.51/x
  3. Step 3: Cross multiply
    31,813.70x = 43,902.81 × 17,666.51
  4. Step 4: Simplify right side
    31,813.70x = 775,609,212.38
  5. Step 5: Solve for x
    x = 775,609,212.38/31,813.70
  6. Step 6: Final answer
    x = 24,379.73

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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.