Home / 30,084.28-41,472.82-21,103.92

Finding the Fourth Proportional to 30,084.28, 41,472.82 and 21,103.92

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Solution

The fourth proportional to 30,084.28, 41,472.82 and 21,103.92 is: 29,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,084.28 : 41,472.82 = 21,103.92 : x
  2. Step 2: Convert to fraction form
    30,084.28/41,472.82 = 21,103.92/x
  3. Step 3: Cross multiply
    30,084.28x = 41,472.82 × 21,103.92
  4. Step 4: Simplify right side
    30,084.28x = 875,239,075.45
  5. Step 5: Solve for x
    x = 875,239,075.45/30,084.28
  6. Step 6: Final answer
    x = 29,092.90

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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.