Home / 19,416.60-29,103.30-8,321.40

Finding the Fourth Proportional to 19,416.60, 29,103.30 and 8,321.40

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Solution

The fourth proportional to 19,416.60, 29,103.30 and 8,321.40 is: 12,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,416.60 : 29,103.30 = 8,321.40 : x
  2. Step 2: Convert to fraction form
    19,416.60/29,103.30 = 8,321.40/x
  3. Step 3: Cross multiply
    19,416.60x = 29,103.30 × 8,321.40
  4. Step 4: Simplify right side
    19,416.60x = 242,180,200.62
  5. Step 5: Solve for x
    x = 242,180,200.62/19,416.60
  6. Step 6: Final answer
    x = 12,472.84

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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.