Home / 30,010.64-41,365.28-21,282.21

Finding the Fourth Proportional to 30,010.64, 41,365.28 and 21,282.21

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Solution

The fourth proportional to 30,010.64, 41,365.28 and 21,282.21 is: 29,334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,010.64 : 41,365.28 = 21,282.21 : x
  2. Step 2: Convert to fraction form
    30,010.64/41,365.28 = 21,282.21/x
  3. Step 3: Cross multiply
    30,010.64x = 41,365.28 × 21,282.21
  4. Step 4: Simplify right side
    30,010.64x = 880,344,628.87
  5. Step 5: Solve for x
    x = 880,344,628.87/30,010.64
  6. Step 6: Final answer
    x = 29,334.42

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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.