Home / 30,237.96-41,733-21,768.12

Finding the Fourth Proportional to 30,237.96, 41,733 and 21,768.12

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Solution

The fourth proportional to 30,237.96, 41,733 and 21,768.12 is: 30,043.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,237.96 : 41,733 = 21,768.12 : x
  2. Step 2: Convert to fraction form
    30,237.96/41,733 = 21,768.12/x
  3. Step 3: Cross multiply
    30,237.96x = 41,733 × 21,768.12
  4. Step 4: Simplify right side
    30,237.96x = 908,448,951.96
  5. Step 5: Solve for x
    x = 908,448,951.96/30,237.96
  6. Step 6: Final answer
    x = 30,043.33

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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.