Home / 30,185.88-45,279.99-14,382.78

Finding the Fourth Proportional to 30,185.88, 45,279.99 and 14,382.78

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Solution

The fourth proportional to 30,185.88, 45,279.99 and 14,382.78 is: 21,574.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.88 : 45,279.99 = 14,382.78 : x
  2. Step 2: Convert to fraction form
    30,185.88/45,279.99 = 14,382.78/x
  3. Step 3: Cross multiply
    30,185.88x = 45,279.99 × 14,382.78
  4. Step 4: Simplify right side
    30,185.88x = 651,252,134.57
  5. Step 5: Solve for x
    x = 651,252,134.57/30,185.88
  6. Step 6: Final answer
    x = 21,574.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.