Home / 28,133.73-42,141.06-18,243.63

Finding the Fourth Proportional to 28,133.73, 42,141.06 and 18,243.63

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Solution

The fourth proportional to 28,133.73, 42,141.06 and 18,243.63 is: 27,326.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.73 : 42,141.06 = 18,243.63 : x
  2. Step 2: Convert to fraction form
    28,133.73/42,141.06 = 18,243.63/x
  3. Step 3: Cross multiply
    28,133.73x = 42,141.06 × 18,243.63
  4. Step 4: Simplify right side
    28,133.73x = 768,805,906.45
  5. Step 5: Solve for x
    x = 768,805,906.45/28,133.73
  6. Step 6: Final answer
    x = 27,326.84

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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.