Home / 30,615.09-45,922.83-8,427.96

Finding the Fourth Proportional to 30,615.09, 45,922.83 and 8,427.96

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Solution

The fourth proportional to 30,615.09, 45,922.83 and 8,427.96 is: 12,641.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,615.09 : 45,922.83 = 8,427.96 : x
  2. Step 2: Convert to fraction form
    30,615.09/45,922.83 = 8,427.96/x
  3. Step 3: Cross multiply
    30,615.09x = 45,922.83 × 8,427.96
  4. Step 4: Simplify right side
    30,615.09x = 387,035,774.33
  5. Step 5: Solve for x
    x = 387,035,774.33/30,615.09
  6. Step 6: Final answer
    x = 12,641.99

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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.