Home / 30,223.44-45,335.16-13,579.92

Finding the Fourth Proportional to 30,223.44, 45,335.16 and 13,579.92

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Solution

The fourth proportional to 30,223.44, 45,335.16 and 13,579.92 is: 20,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223.44 : 45,335.16 = 13,579.92 : x
  2. Step 2: Convert to fraction form
    30,223.44/45,335.16 = 13,579.92/x
  3. Step 3: Cross multiply
    30,223.44x = 45,335.16 × 13,579.92
  4. Step 4: Simplify right side
    30,223.44x = 615,647,845.99
  5. Step 5: Solve for x
    x = 615,647,845.99/30,223.44
  6. Step 6: Final answer
    x = 20,369.88

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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.