Home / 30,429.12-41,993.28-17,857.92

Finding the Fourth Proportional to 30,429.12, 41,993.28 and 17,857.92

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Solution

The fourth proportional to 30,429.12, 41,993.28 and 17,857.92 is: 24,644.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,429.12 : 41,993.28 = 17,857.92 : x
  2. Step 2: Convert to fraction form
    30,429.12/41,993.28 = 17,857.92/x
  3. Step 3: Cross multiply
    30,429.12x = 41,993.28 × 17,857.92
  4. Step 4: Simplify right side
    30,429.12x = 749,912,634.78
  5. Step 5: Solve for x
    x = 749,912,634.78/30,429.12
  6. Step 6: Final answer
    x = 24,644.57

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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.