Home / 21,780.94-32,668.33-6,987.93

Finding the Fourth Proportional to 21,780.94, 32,668.33 and 6,987.93

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Solution

The fourth proportional to 21,780.94, 32,668.33 and 6,987.93 is: 10,480.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780.94 : 32,668.33 = 6,987.93 : x
  2. Step 2: Convert to fraction form
    21,780.94/32,668.33 = 6,987.93/x
  3. Step 3: Cross multiply
    21,780.94x = 32,668.33 × 6,987.93
  4. Step 4: Simplify right side
    21,780.94x = 228,284,003.26
  5. Step 5: Solve for x
    x = 228,284,003.26/21,780.94
  6. Step 6: Final answer
    x = 10,480.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.