Home / 20,752.62-28,638.48-11,800.12

Finding the Fourth Proportional to 20,752.62, 28,638.48 and 11,800.12

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Solution

The fourth proportional to 20,752.62, 28,638.48 and 11,800.12 is: 16,284.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.62 : 28,638.48 = 11,800.12 : x
  2. Step 2: Convert to fraction form
    20,752.62/28,638.48 = 11,800.12/x
  3. Step 3: Cross multiply
    20,752.62x = 28,638.48 × 11,800.12
  4. Step 4: Simplify right side
    20,752.62x = 337,937,370.02
  5. Step 5: Solve for x
    x = 337,937,370.02/20,752.62
  6. Step 6: Final answer
    x = 16,284.09

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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.