Home / 20,241.13-30,366.55-6,390.13

Finding the Fourth Proportional to 20,241.13, 30,366.55 and 6,390.13

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Solution

The fourth proportional to 20,241.13, 30,366.55 and 6,390.13 is: 9,586.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.13 : 30,366.55 = 6,390.13 : x
  2. Step 2: Convert to fraction form
    20,241.13/30,366.55 = 6,390.13/x
  3. Step 3: Cross multiply
    20,241.13x = 30,366.55 × 6,390.13
  4. Step 4: Simplify right side
    20,241.13x = 194,046,050.32
  5. Step 5: Solve for x
    x = 194,046,050.32/20,241.13
  6. Step 6: Final answer
    x = 9,586.72

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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.