Home / 20,752.58-28,634.85-11,799.56

Finding the Fourth Proportional to 20,752.58, 28,634.85 and 11,799.56

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Solution

The fourth proportional to 20,752.58, 28,634.85 and 11,799.56 is: 16,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.58 : 28,634.85 = 11,799.56 : x
  2. Step 2: Convert to fraction form
    20,752.58/28,634.85 = 11,799.56/x
  3. Step 3: Cross multiply
    20,752.58x = 28,634.85 × 11,799.56
  4. Step 4: Simplify right side
    20,752.58x = 337,878,487.49
  5. Step 5: Solve for x
    x = 337,878,487.49/20,752.58
  6. Step 6: Final answer
    x = 16,281.28

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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.