Home / 31,751.01-43,814.93-18,326.61

Finding the Fourth Proportional to 31,751.01, 43,814.93 and 18,326.61

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Solution

The fourth proportional to 31,751.01, 43,814.93 and 18,326.61 is: 25,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.01 : 43,814.93 = 18,326.61 : x
  2. Step 2: Convert to fraction form
    31,751.01/43,814.93 = 18,326.61/x
  3. Step 3: Cross multiply
    31,751.01x = 43,814.93 × 18,326.61
  4. Step 4: Simplify right side
    31,751.01x = 802,979,042.65
  5. Step 5: Solve for x
    x = 802,979,042.65/31,751.01
  6. Step 6: Final answer
    x = 25,289.87

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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.