Home / 19,029.20-28,500.60-9,784.40

Finding the Fourth Proportional to 19,029.20, 28,500.60 and 9,784.40

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Solution

The fourth proportional to 19,029.20, 28,500.60 and 9,784.40 is: 14,654.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,029.20 : 28,500.60 = 9,784.40 : x
  2. Step 2: Convert to fraction form
    19,029.20/28,500.60 = 9,784.40/x
  3. Step 3: Cross multiply
    19,029.20x = 28,500.60 × 9,784.40
  4. Step 4: Simplify right side
    19,029.20x = 278,861,270.64
  5. Step 5: Solve for x
    x = 278,861,270.64/19,029.20
  6. Step 6: Final answer
    x = 14,654.39

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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.