Home / 20,235.48-27,915.03-13,522.77

Finding the Fourth Proportional to 20,235.48, 27,915.03 and 13,522.77

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Solution

The fourth proportional to 20,235.48, 27,915.03 and 13,522.77 is: 18,654.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.48 : 27,915.03 = 13,522.77 : x
  2. Step 2: Convert to fraction form
    20,235.48/27,915.03 = 13,522.77/x
  3. Step 3: Cross multiply
    20,235.48x = 27,915.03 × 13,522.77
  4. Step 4: Simplify right side
    20,235.48x = 377,488,530.23
  5. Step 5: Solve for x
    x = 377,488,530.23/20,235.48
  6. Step 6: Final answer
    x = 18,654.79

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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.