Home / 30,585.28-45,863.84-12,104.64

Finding the Fourth Proportional to 30,585.28, 45,863.84 and 12,104.64

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Solution

The fourth proportional to 30,585.28, 45,863.84 and 12,104.64 is: 18,151.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585.28 : 45,863.84 = 12,104.64 : x
  2. Step 2: Convert to fraction form
    30,585.28/45,863.84 = 12,104.64/x
  3. Step 3: Cross multiply
    30,585.28x = 45,863.84 × 12,104.64
  4. Step 4: Simplify right side
    30,585.28x = 555,165,272.22
  5. Step 5: Solve for x
    x = 555,165,272.22/30,585.28
  6. Step 6: Final answer
    x = 18,151.39

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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.