Home / 20,841.04-28,759.98-11,409.04

Finding the Fourth Proportional to 20,841.04, 28,759.98 and 11,409.04

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Solution

The fourth proportional to 20,841.04, 28,759.98 and 11,409.04 is: 15,744.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.04 : 28,759.98 = 11,409.04 : x
  2. Step 2: Convert to fraction form
    20,841.04/28,759.98 = 11,409.04/x
  3. Step 3: Cross multiply
    20,841.04x = 28,759.98 × 11,409.04
  4. Step 4: Simplify right side
    20,841.04x = 328,123,762.22
  5. Step 5: Solve for x
    x = 328,123,762.22/20,841.04
  6. Step 6: Final answer
    x = 15,744.12

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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.