Home / 30,091.57-45,160.07-20,581.16

Finding the Fourth Proportional to 30,091.57, 45,160.07 and 20,581.16

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Solution

The fourth proportional to 30,091.57, 45,160.07 and 20,581.16 is: 30,887.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,091.57 : 45,160.07 = 20,581.16 : x
  2. Step 2: Convert to fraction form
    30,091.57/45,160.07 = 20,581.16/x
  3. Step 3: Cross multiply
    30,091.57x = 45,160.07 × 20,581.16
  4. Step 4: Simplify right side
    30,091.57x = 929,446,297.58
  5. Step 5: Solve for x
    x = 929,446,297.58/30,091.57
  6. Step 6: Final answer
    x = 30,887.27

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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.