Home / 19,404.48-29,121.84-13,522.80

Finding the Fourth Proportional to 19,404.48, 29,121.84 and 13,522.80

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Solution

The fourth proportional to 19,404.48, 29,121.84 and 13,522.80 is: 20,294.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,404.48 : 29,121.84 = 13,522.80 : x
  2. Step 2: Convert to fraction form
    19,404.48/29,121.84 = 13,522.80/x
  3. Step 3: Cross multiply
    19,404.48x = 29,121.84 × 13,522.80
  4. Step 4: Simplify right side
    19,404.48x = 393,808,817.95
  5. Step 5: Solve for x
    x = 393,808,817.95/19,404.48
  6. Step 6: Final answer
    x = 20,294.74

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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.