Home / 20,145.63-30,218.45-6,294.63

Finding the Fourth Proportional to 20,145.63, 30,218.45 and 6,294.63

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Solution

The fourth proportional to 20,145.63, 30,218.45 and 6,294.63 is: 9,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.63 : 30,218.45 = 6,294.63 : x
  2. Step 2: Convert to fraction form
    20,145.63/30,218.45 = 6,294.63/x
  3. Step 3: Cross multiply
    20,145.63x = 30,218.45 × 6,294.63
  4. Step 4: Simplify right side
    20,145.63x = 190,213,977.66
  5. Step 5: Solve for x
    x = 190,213,977.66/20,145.63
  6. Step 6: Final answer
    x = 9,441.95

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Double scale
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Similar ratio
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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.