Home / 28,172.88-42,238.36-17,076.89

Finding the Fourth Proportional to 28,172.88, 42,238.36 and 17,076.89

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Solution

The fourth proportional to 28,172.88, 42,238.36 and 17,076.89 is: 25,602.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.88 : 42,238.36 = 17,076.89 : x
  2. Step 2: Convert to fraction form
    28,172.88/42,238.36 = 17,076.89/x
  3. Step 3: Cross multiply
    28,172.88x = 42,238.36 × 17,076.89
  4. Step 4: Simplify right side
    28,172.88x = 721,299,954.44
  5. Step 5: Solve for x
    x = 721,299,954.44/28,172.88
  6. Step 6: Final answer
    x = 25,602.63

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1.5x scale

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.