Home / 19,946.20-29,919.30-13,725.40

Finding the Fourth Proportional to 19,946.20, 29,919.30 and 13,725.40

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Solution

The fourth proportional to 19,946.20, 29,919.30 and 13,725.40 is: 20,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,946.20 : 29,919.30 = 13,725.40 : x
  2. Step 2: Convert to fraction form
    19,946.20/29,919.30 = 13,725.40/x
  3. Step 3: Cross multiply
    19,946.20x = 29,919.30 × 13,725.40
  4. Step 4: Simplify right side
    19,946.20x = 410,654,360.22
  5. Step 5: Solve for x
    x = 410,654,360.22/19,946.20
  6. Step 6: Final answer
    x = 20,588.10

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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.