Home / 31,295.33-43,187.58-18,554.80

Finding the Fourth Proportional to 31,295.33, 43,187.58 and 18,554.80

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Solution

The fourth proportional to 31,295.33, 43,187.58 and 18,554.80 is: 25,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,295.33 : 43,187.58 = 18,554.80 : x
  2. Step 2: Convert to fraction form
    31,295.33/43,187.58 = 18,554.80/x
  3. Step 3: Cross multiply
    31,295.33x = 43,187.58 × 18,554.80
  4. Step 4: Simplify right side
    31,295.33x = 801,336,909.38
  5. Step 5: Solve for x
    x = 801,336,909.38/31,295.33
  6. Step 6: Final answer
    x = 25,605.64

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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.