Home / 31,668.58-43,701.15-18,240.22

Finding the Fourth Proportional to 31,668.58, 43,701.15 and 18,240.22

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Solution

The fourth proportional to 31,668.58, 43,701.15 and 18,240.22 is: 25,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,668.58 : 43,701.15 = 18,240.22 : x
  2. Step 2: Convert to fraction form
    31,668.58/43,701.15 = 18,240.22/x
  3. Step 3: Cross multiply
    31,668.58x = 43,701.15 × 18,240.22
  4. Step 4: Simplify right side
    31,668.58x = 797,118,590.25
  5. Step 5: Solve for x
    x = 797,118,590.25/31,668.58
  6. Step 6: Final answer
    x = 25,170.65

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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.