Home / 31,391.72-43,323.62-17,964.89

Finding the Fourth Proportional to 31,391.72, 43,323.62 and 17,964.89

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Solution

The fourth proportional to 31,391.72, 43,323.62 and 17,964.89 is: 24,793.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.72 : 43,323.62 = 17,964.89 : x
  2. Step 2: Convert to fraction form
    31,391.72/43,323.62 = 17,964.89/x
  3. Step 3: Cross multiply
    31,391.72x = 43,323.62 × 17,964.89
  4. Step 4: Simplify right side
    31,391.72x = 778,303,761.26
  5. Step 5: Solve for x
    x = 778,303,761.26/31,391.72
  6. Step 6: Final answer
    x = 24,793.29

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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.