Home / 20,383.34-30,560.42-8,690.18

Finding the Fourth Proportional to 20,383.34, 30,560.42 and 8,690.18

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Solution

The fourth proportional to 20,383.34, 30,560.42 and 8,690.18 is: 13,029.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.34 : 30,560.42 = 8,690.18 : x
  2. Step 2: Convert to fraction form
    20,383.34/30,560.42 = 8,690.18/x
  3. Step 3: Cross multiply
    20,383.34x = 30,560.42 × 8,690.18
  4. Step 4: Simplify right side
    20,383.34x = 265,575,354.42
  5. Step 5: Solve for x
    x = 265,575,354.42/20,383.34
  6. Step 6: Final answer
    x = 13,029.04

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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.