Home / 19,091.32-28,622.10-9,090.91

Finding the Fourth Proportional to 19,091.32, 28,622.10 and 9,090.91

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Solution

The fourth proportional to 19,091.32, 28,622.10 and 9,090.91 is: 13,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,091.32 : 28,622.10 = 9,090.91 : x
  2. Step 2: Convert to fraction form
    19,091.32/28,622.10 = 9,090.91/x
  3. Step 3: Cross multiply
    19,091.32x = 28,622.10 × 9,090.91
  4. Step 4: Simplify right side
    19,091.32x = 260,200,863.56
  5. Step 5: Solve for x
    x = 260,200,863.56/19,091.32
  6. Step 6: Final answer
    x = 13,629.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.