Home / 28,504.69-42,757.76-13,508.29

Finding the Fourth Proportional to 28,504.69, 42,757.76 and 13,508.29

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Solution

The fourth proportional to 28,504.69, 42,757.76 and 13,508.29 is: 20,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,504.69 : 42,757.76 = 13,508.29 : x
  2. Step 2: Convert to fraction form
    28,504.69/42,757.76 = 13,508.29/x
  3. Step 3: Cross multiply
    28,504.69x = 42,757.76 × 13,508.29
  4. Step 4: Simplify right side
    28,504.69x = 577,584,221.83
  5. Step 5: Solve for x
    x = 577,584,221.83/28,504.69
  6. Step 6: Final answer
    x = 20,262.78

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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.