Home / 20,434.98-28,200.30-11,482.48

Finding the Fourth Proportional to 20,434.98, 28,200.30 and 11,482.48

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Solution

The fourth proportional to 20,434.98, 28,200.30 and 11,482.48 is: 15,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434.98 : 28,200.30 = 11,482.48 : x
  2. Step 2: Convert to fraction form
    20,434.98/28,200.30 = 11,482.48/x
  3. Step 3: Cross multiply
    20,434.98x = 28,200.30 × 11,482.48
  4. Step 4: Simplify right side
    20,434.98x = 323,809,380.74
  5. Step 5: Solve for x
    x = 323,809,380.74/20,434.98
  6. Step 6: Final answer
    x = 15,845.84

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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.