Home / 28,681.14-43,021.71-8,961.26

Finding the Fourth Proportional to 28,681.14, 43,021.71 and 8,961.26

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Solution

The fourth proportional to 28,681.14, 43,021.71 and 8,961.26 is: 13,441.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.14 : 43,021.71 = 8,961.26 : x
  2. Step 2: Convert to fraction form
    28,681.14/43,021.71 = 8,961.26/x
  3. Step 3: Cross multiply
    28,681.14x = 43,021.71 × 8,961.26
  4. Step 4: Simplify right side
    28,681.14x = 385,528,513.85
  5. Step 5: Solve for x
    x = 385,528,513.85/28,681.14
  6. Step 6: Final answer
    x = 13,441.88

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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.