Home / 30,619.70-45,917.75-11,897.28

Finding the Fourth Proportional to 30,619.70, 45,917.75 and 11,897.28

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Solution

The fourth proportional to 30,619.70, 45,917.75 and 11,897.28 is: 17,841.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.70 : 45,917.75 = 11,897.28 : x
  2. Step 2: Convert to fraction form
    30,619.70/45,917.75 = 11,897.28/x
  3. Step 3: Cross multiply
    30,619.70x = 45,917.75 × 11,897.28
  4. Step 4: Simplify right side
    30,619.70x = 546,296,097.04
  5. Step 5: Solve for x
    x = 546,296,097.04/30,619.70
  6. Step 6: Final answer
    x = 17,841.33

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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.