Home / 30,144.18-41,609.74-20,577.22

Finding the Fourth Proportional to 30,144.18, 41,609.74 and 20,577.22

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Solution

The fourth proportional to 30,144.18, 41,609.74 and 20,577.22 is: 28,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,144.18 : 41,609.74 = 20,577.22 : x
  2. Step 2: Convert to fraction form
    30,144.18/41,609.74 = 20,577.22/x
  3. Step 3: Cross multiply
    30,144.18x = 41,609.74 × 20,577.22
  4. Step 4: Simplify right side
    30,144.18x = 856,212,774.12
  5. Step 5: Solve for x
    x = 856,212,774.12/30,144.18
  6. Step 6: Final answer
    x = 28,403.92

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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.