Home / 20,416.42-28,174.70-11,466.84

Finding the Fourth Proportional to 20,416.42, 28,174.70 and 11,466.84

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Solution

The fourth proportional to 20,416.42, 28,174.70 and 11,466.84 is: 15,824.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.42 : 28,174.70 = 11,466.84 : x
  2. Step 2: Convert to fraction form
    20,416.42/28,174.70 = 11,466.84/x
  3. Step 3: Cross multiply
    20,416.42x = 28,174.70 × 11,466.84
  4. Step 4: Simplify right side
    20,416.42x = 323,074,776.95
  5. Step 5: Solve for x
    x = 323,074,776.95/20,416.42
  6. Step 6: Final answer
    x = 15,824.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.