Home / 19,847.20-29,727.60-12,042.40

Finding the Fourth Proportional to 19,847.20, 29,727.60 and 12,042.40

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Solution

The fourth proportional to 19,847.20, 29,727.60 and 12,042.40 is: 18,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847.20 : 29,727.60 = 12,042.40 : x
  2. Step 2: Convert to fraction form
    19,847.20/29,727.60 = 12,042.40/x
  3. Step 3: Cross multiply
    19,847.20x = 29,727.60 × 12,042.40
  4. Step 4: Simplify right side
    19,847.20x = 357,991,650.24
  5. Step 5: Solve for x
    x = 357,991,650.24/19,847.20
  6. Step 6: Final answer
    x = 18,037.39

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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.