Home / 20,657.33-28,507.03-11,706.54

Finding the Fourth Proportional to 20,657.33, 28,507.03 and 11,706.54

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Solution

The fourth proportional to 20,657.33, 28,507.03 and 11,706.54 is: 16,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.33 : 28,507.03 = 11,706.54 : x
  2. Step 2: Convert to fraction form
    20,657.33/28,507.03 = 11,706.54/x
  3. Step 3: Cross multiply
    20,657.33x = 28,507.03 × 11,706.54
  4. Step 4: Simplify right side
    20,657.33x = 333,718,686.98
  5. Step 5: Solve for x
    x = 333,718,686.98/20,657.33
  6. Step 6: Final answer
    x = 16,154.98

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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.