Home / 20,268.34-30,381.84-11,484.70

Finding the Fourth Proportional to 20,268.34, 30,381.84 and 11,484.70

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Solution

The fourth proportional to 20,268.34, 30,381.84 and 11,484.70 is: 17,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.34 : 30,381.84 = 11,484.70 : x
  2. Step 2: Convert to fraction form
    20,268.34/30,381.84 = 11,484.70/x
  3. Step 3: Cross multiply
    20,268.34x = 30,381.84 × 11,484.70
  4. Step 4: Simplify right side
    20,268.34x = 348,926,317.85
  5. Step 5: Solve for x
    x = 348,926,317.85/20,268.34
  6. Step 6: Final answer
    x = 17,215.34

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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.