Home / 19,728.72-29,372.94-19,452.96

Finding the Fourth Proportional to 19,728.72, 29,372.94 and 19,452.96

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Solution

The fourth proportional to 19,728.72, 29,372.94 and 19,452.96 is: 28,962.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.72 : 29,372.94 = 19,452.96 : x
  2. Step 2: Convert to fraction form
    19,728.72/29,372.94 = 19,452.96/x
  3. Step 3: Cross multiply
    19,728.72x = 29,372.94 × 19,452.96
  4. Step 4: Simplify right side
    19,728.72x = 571,390,626.90
  5. Step 5: Solve for x
    x = 571,390,626.90/19,728.72
  6. Step 6: Final answer
    x = 28,962.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.