Home / 30,112.71-41,562.44-20,041.57

Finding the Fourth Proportional to 30,112.71, 41,562.44 and 20,041.57

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Solution

The fourth proportional to 30,112.71, 41,562.44 and 20,041.57 is: 27,661.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,112.71 : 41,562.44 = 20,041.57 : x
  2. Step 2: Convert to fraction form
    30,112.71/41,562.44 = 20,041.57/x
  3. Step 3: Cross multiply
    30,112.71x = 41,562.44 × 20,041.57
  4. Step 4: Simplify right side
    30,112.71x = 832,976,550.63
  5. Step 5: Solve for x
    x = 832,976,550.63/30,112.71
  6. Step 6: Final answer
    x = 27,661.96

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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.