Home / 20,734.97-28,614.32-11,785.45

Finding the Fourth Proportional to 20,734.97, 28,614.32 and 11,785.45

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Solution

The fourth proportional to 20,734.97, 28,614.32 and 11,785.45 is: 16,263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.97 : 28,614.32 = 11,785.45 : x
  2. Step 2: Convert to fraction form
    20,734.97/28,614.32 = 11,785.45/x
  3. Step 3: Cross multiply
    20,734.97x = 28,614.32 × 11,785.45
  4. Step 4: Simplify right side
    20,734.97x = 337,232,637.64
  5. Step 5: Solve for x
    x = 337,232,637.64/20,734.97
  6. Step 6: Final answer
    x = 16,263.96

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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.