Home / 19,742.72-29,617.60-11,942.24

Finding the Fourth Proportional to 19,742.72, 29,617.60 and 11,942.24

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Solution

The fourth proportional to 19,742.72, 29,617.60 and 11,942.24 is: 17,915.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.72 : 29,617.60 = 11,942.24 : x
  2. Step 2: Convert to fraction form
    19,742.72/29,617.60 = 11,942.24/x
  3. Step 3: Cross multiply
    19,742.72x = 29,617.60 × 11,942.24
  4. Step 4: Simplify right side
    19,742.72x = 353,700,487.42
  5. Step 5: Solve for x
    x = 353,700,487.42/19,742.72
  6. Step 6: Final answer
    x = 17,915.49

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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.