Home / 30,212.38-41,686.75-18,273.39

Finding the Fourth Proportional to 30,212.38, 41,686.75 and 18,273.39

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Solution

The fourth proportional to 30,212.38, 41,686.75 and 18,273.39 is: 25,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.38 : 41,686.75 = 18,273.39 : x
  2. Step 2: Convert to fraction form
    30,212.38/41,686.75 = 18,273.39/x
  3. Step 3: Cross multiply
    30,212.38x = 41,686.75 × 18,273.39
  4. Step 4: Simplify right side
    30,212.38x = 761,758,240.58
  5. Step 5: Solve for x
    x = 761,758,240.58/30,212.38
  6. Step 6: Final answer
    x = 25,213.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.