Home / 28,133.33-42,201.81-9,412.61

Finding the Fourth Proportional to 28,133.33, 42,201.81 and 9,412.61

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Solution

The fourth proportional to 28,133.33, 42,201.81 and 9,412.61 is: 14,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.33 : 42,201.81 = 9,412.61 : x
  2. Step 2: Convert to fraction form
    28,133.33/42,201.81 = 9,412.61/x
  3. Step 3: Cross multiply
    28,133.33x = 42,201.81 × 9,412.61
  4. Step 4: Simplify right side
    28,133.33x = 397,228,967.82
  5. Step 5: Solve for x
    x = 397,228,967.82/28,133.33
  6. Step 6: Final answer
    x = 14,119.52

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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.