Home / 20,277.33-30,402.99-8,439.32

Finding the Fourth Proportional to 20,277.33, 30,402.99 and 8,439.32

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Solution

The fourth proportional to 20,277.33, 30,402.99 and 8,439.32 is: 12,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.33 : 30,402.99 = 8,439.32 : x
  2. Step 2: Convert to fraction form
    20,277.33/30,402.99 = 8,439.32/x
  3. Step 3: Cross multiply
    20,277.33x = 30,402.99 × 8,439.32
  4. Step 4: Simplify right side
    20,277.33x = 256,580,409.55
  5. Step 5: Solve for x
    x = 256,580,409.55/20,277.33
  6. Step 6: Final answer
    x = 12,653.56

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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.