Home / 20,182.58-30,281.56-9,086.72

Finding the Fourth Proportional to 20,182.58, 30,281.56 and 9,086.72

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Solution

The fourth proportional to 20,182.58, 30,281.56 and 9,086.72 is: 13,633.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.58 : 30,281.56 = 9,086.72 : x
  2. Step 2: Convert to fraction form
    20,182.58/30,281.56 = 9,086.72/x
  3. Step 3: Cross multiply
    20,182.58x = 30,281.56 × 9,086.72
  4. Step 4: Simplify right side
    20,182.58x = 275,159,905.48
  5. Step 5: Solve for x
    x = 275,159,905.48/20,182.58
  6. Step 6: Final answer
    x = 13,633.53

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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.