Home / 28,305.92-39,035.52-18,224.64

Finding the Fourth Proportional to 28,305.92, 39,035.52 and 18,224.64

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Solution

The fourth proportional to 28,305.92, 39,035.52 and 18,224.64 is: 25,132.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.92 : 39,035.52 = 18,224.64 : x
  2. Step 2: Convert to fraction form
    28,305.92/39,035.52 = 18,224.64/x
  3. Step 3: Cross multiply
    28,305.92x = 39,035.52 × 18,224.64
  4. Step 4: Simplify right side
    28,305.92x = 711,408,299.21
  5. Step 5: Solve for x
    x = 711,408,299.21/28,305.92
  6. Step 6: Final answer
    x = 25,132.84

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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.