Home / 28,793.20-39,733.68-17,615.20

Finding the Fourth Proportional to 28,793.20, 39,733.68 and 17,615.20

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Solution

The fourth proportional to 28,793.20, 39,733.68 and 17,615.20 is: 24,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.20 : 39,733.68 = 17,615.20 : x
  2. Step 2: Convert to fraction form
    28,793.20/39,733.68 = 17,615.20/x
  3. Step 3: Cross multiply
    28,793.20x = 39,733.68 × 17,615.20
  4. Step 4: Simplify right side
    28,793.20x = 699,916,719.94
  5. Step 5: Solve for x
    x = 699,916,719.94/28,793.20
  6. Step 6: Final answer
    x = 24,308.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.