Home / 28,675.64-39,573-16,100.36

Finding the Fourth Proportional to 28,675.64, 39,573 and 16,100.36

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Solution

The fourth proportional to 28,675.64, 39,573 and 16,100.36 is: 22,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,675.64 : 39,573 = 16,100.36 : x
  2. Step 2: Convert to fraction form
    28,675.64/39,573 = 16,100.36/x
  3. Step 3: Cross multiply
    28,675.64x = 39,573 × 16,100.36
  4. Step 4: Simplify right side
    28,675.64x = 637,139,546.28
  5. Step 5: Solve for x
    x = 637,139,546.28/28,675.64
  6. Step 6: Final answer
    x = 22,218.84

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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.