Home / 39,120.08-58,679.88-12,824.64

Finding the Fourth Proportional to 39,120.08, 58,679.88 and 12,824.64

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Solution

The fourth proportional to 39,120.08, 58,679.88 and 12,824.64 is: 19,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,120.08 : 58,679.88 = 12,824.64 : x
  2. Step 2: Convert to fraction form
    39,120.08/58,679.88 = 12,824.64/x
  3. Step 3: Cross multiply
    39,120.08x = 58,679.88 × 12,824.64
  4. Step 4: Simplify right side
    39,120.08x = 752,548,336.24
  5. Step 5: Solve for x
    x = 752,548,336.24/39,120.08
  6. Step 6: Final answer
    x = 19,236.88

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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.