Home / 19,404.60-29,049.30-12,838.20

Finding the Fourth Proportional to 19,404.60, 29,049.30 and 12,838.20

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Solution

The fourth proportional to 19,404.60, 29,049.30 and 12,838.20 is: 19,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,404.60 : 29,049.30 = 12,838.20 : x
  2. Step 2: Convert to fraction form
    19,404.60/29,049.30 = 12,838.20/x
  3. Step 3: Cross multiply
    19,404.60x = 29,049.30 × 12,838.20
  4. Step 4: Simplify right side
    19,404.60x = 372,940,723.26
  5. Step 5: Solve for x
    x = 372,940,723.26/19,404.60
  6. Step 6: Final answer
    x = 19,219.19

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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.