Home / 29,309.45-43,947.77-12,659.09

Finding the Fourth Proportional to 29,309.45, 43,947.77 and 12,659.09

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Solution

The fourth proportional to 29,309.45, 43,947.77 and 12,659.09 is: 18,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,309.45 : 43,947.77 = 12,659.09 : x
  2. Step 2: Convert to fraction form
    29,309.45/43,947.77 = 12,659.09/x
  3. Step 3: Cross multiply
    29,309.45x = 43,947.77 × 12,659.09
  4. Step 4: Simplify right side
    29,309.45x = 556,338,492.70
  5. Step 5: Solve for x
    x = 556,338,492.70/29,309.45
  6. Step 6: Final answer
    x = 18,981.54

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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.