Home / 30,391.74-45,546.44-13,730.99

Finding the Fourth Proportional to 30,391.74, 45,546.44 and 13,730.99

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Solution

The fourth proportional to 30,391.74, 45,546.44 and 13,730.99 is: 20,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.74 : 45,546.44 = 13,730.99 : x
  2. Step 2: Convert to fraction form
    30,391.74/45,546.44 = 13,730.99/x
  3. Step 3: Cross multiply
    30,391.74x = 45,546.44 × 13,730.99
  4. Step 4: Simplify right side
    30,391.74x = 625,397,415.79
  5. Step 5: Solve for x
    x = 625,397,415.79/30,391.74
  6. Step 6: Final answer
    x = 20,577.87

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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.