Home / 20,404.46-28,160.98-11,452.50

Finding the Fourth Proportional to 20,404.46, 28,160.98 and 11,452.50

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Solution

The fourth proportional to 20,404.46, 28,160.98 and 11,452.50 is: 15,806.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.46 : 28,160.98 = 11,452.50 : x
  2. Step 2: Convert to fraction form
    20,404.46/28,160.98 = 11,452.50/x
  3. Step 3: Cross multiply
    20,404.46x = 28,160.98 × 11,452.50
  4. Step 4: Simplify right side
    20,404.46x = 322,513,623.45
  5. Step 5: Solve for x
    x = 322,513,623.45/20,404.46
  6. Step 6: Final answer
    x = 15,806.04

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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.