Home / 20,516.14-28,312.26-11,084.68

Finding the Fourth Proportional to 20,516.14, 28,312.26 and 11,084.68

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Solution

The fourth proportional to 20,516.14, 28,312.26 and 11,084.68 is: 15,296.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.14 : 28,312.26 = 11,084.68 : x
  2. Step 2: Convert to fraction form
    20,516.14/28,312.26 = 11,084.68/x
  3. Step 3: Cross multiply
    20,516.14x = 28,312.26 × 11,084.68
  4. Step 4: Simplify right side
    20,516.14x = 313,832,342.18
  5. Step 5: Solve for x
    x = 313,832,342.18/20,516.14
  6. Step 6: Final answer
    x = 15,296.85

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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.