Home / 30,819.30-46,228.80-12,086.10

Finding the Fourth Proportional to 30,819.30, 46,228.80 and 12,086.10

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Solution

The fourth proportional to 30,819.30, 46,228.80 and 12,086.10 is: 18,129.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,819.30 : 46,228.80 = 12,086.10 : x
  2. Step 2: Convert to fraction form
    30,819.30/46,228.80 = 12,086.10/x
  3. Step 3: Cross multiply
    30,819.30x = 46,228.80 × 12,086.10
  4. Step 4: Simplify right side
    30,819.30x = 558,725,899.68
  5. Step 5: Solve for x
    x = 558,725,899.68/30,819.30
  6. Step 6: Final answer
    x = 18,129.09

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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.