Home / 33,058.35-45,609.10-21,128.67

Finding the Fourth Proportional to 33,058.35, 45,609.10 and 21,128.67

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Solution

The fourth proportional to 33,058.35, 45,609.10 and 21,128.67 is: 29,150.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,058.35 : 45,609.10 = 21,128.67 : x
  2. Step 2: Convert to fraction form
    33,058.35/45,609.10 = 21,128.67/x
  3. Step 3: Cross multiply
    33,058.35x = 45,609.10 × 21,128.67
  4. Step 4: Simplify right side
    33,058.35x = 963,659,622.90
  5. Step 5: Solve for x
    x = 963,659,622.90/33,058.35
  6. Step 6: Final answer
    x = 29,150.26

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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.