Home / 30,380.67-45,571.01-15,581.36

Finding the Fourth Proportional to 30,380.67, 45,571.01 and 15,581.36

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Solution

The fourth proportional to 30,380.67, 45,571.01 and 15,581.36 is: 23,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,380.67 : 45,571.01 = 15,581.36 : x
  2. Step 2: Convert to fraction form
    30,380.67/45,571.01 = 15,581.36/x
  3. Step 3: Cross multiply
    30,380.67x = 45,571.01 × 15,581.36
  4. Step 4: Simplify right side
    30,380.67x = 710,058,348.39
  5. Step 5: Solve for x
    x = 710,058,348.39/30,380.67
  6. Step 6: Final answer
    x = 23,372.04

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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.