Home / 20,267.34-30,380.35-11,483.70

Finding the Fourth Proportional to 20,267.34, 30,380.35 and 11,483.70

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Solution

The fourth proportional to 20,267.34, 30,380.35 and 11,483.70 is: 17,213.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.34 : 30,380.35 = 11,483.70 : x
  2. Step 2: Convert to fraction form
    20,267.34/30,380.35 = 11,483.70/x
  3. Step 3: Cross multiply
    20,267.34x = 30,380.35 × 11,483.70
  4. Step 4: Simplify right side
    20,267.34x = 348,878,825.30
  5. Step 5: Solve for x
    x = 348,878,825.30/20,267.34
  6. Step 6: Final answer
    x = 17,213.84

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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.