Home / 20,133.30-30,165.63-13,102.62

Finding the Fourth Proportional to 20,133.30, 30,165.63 and 13,102.62

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Solution

The fourth proportional to 20,133.30, 30,165.63 and 13,102.62 is: 19,631.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.30 : 30,165.63 = 13,102.62 : x
  2. Step 2: Convert to fraction form
    20,133.30/30,165.63 = 13,102.62/x
  3. Step 3: Cross multiply
    20,133.30x = 30,165.63 × 13,102.62
  4. Step 4: Simplify right side
    20,133.30x = 395,248,786.95
  5. Step 5: Solve for x
    x = 395,248,786.95/20,133.30
  6. Step 6: Final answer
    x = 19,631.59

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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.