Home / 20,657.07-28,505.14-11,705.98

Finding the Fourth Proportional to 20,657.07, 28,505.14 and 11,705.98

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Solution

The fourth proportional to 20,657.07, 28,505.14 and 11,705.98 is: 16,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.07 : 28,505.14 = 11,705.98 : x
  2. Step 2: Convert to fraction form
    20,657.07/28,505.14 = 11,705.98/x
  3. Step 3: Cross multiply
    20,657.07x = 28,505.14 × 11,705.98
  4. Step 4: Simplify right side
    20,657.07x = 333,680,397.68
  5. Step 5: Solve for x
    x = 333,680,397.68/20,657.07
  6. Step 6: Final answer
    x = 16,153.33

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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.