Home / 28,192.82-42,272.84-10,664.02

Finding the Fourth Proportional to 28,192.82, 42,272.84 and 10,664.02

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Solution

The fourth proportional to 28,192.82, 42,272.84 and 10,664.02 is: 15,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.82 : 42,272.84 = 10,664.02 : x
  2. Step 2: Convert to fraction form
    28,192.82/42,272.84 = 10,664.02/x
  3. Step 3: Cross multiply
    28,192.82x = 42,272.84 × 10,664.02
  4. Step 4: Simplify right side
    28,192.82x = 450,798,252.21
  5. Step 5: Solve for x
    x = 450,798,252.21/28,192.82
  6. Step 6: Final answer
    x = 15,989.82

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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.