Home / 30,321.06-45,452.43-13,672.32

Finding the Fourth Proportional to 30,321.06, 45,452.43 and 13,672.32

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Solution

The fourth proportional to 30,321.06, 45,452.43 and 13,672.32 is: 20,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.06 : 45,452.43 = 13,672.32 : x
  2. Step 2: Convert to fraction form
    30,321.06/45,452.43 = 13,672.32/x
  3. Step 3: Cross multiply
    30,321.06x = 45,452.43 × 13,672.32
  4. Step 4: Simplify right side
    30,321.06x = 621,440,167.74
  5. Step 5: Solve for x
    x = 621,440,167.74/30,321.06
  6. Step 6: Final answer
    x = 20,495.33

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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.