Home / 19,305.50-28,958.25-5,454.86

Finding the Fourth Proportional to 19,305.50, 28,958.25 and 5,454.86

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Solution

The fourth proportional to 19,305.50, 28,958.25 and 5,454.86 is: 8,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.50 : 28,958.25 = 5,454.86 : x
  2. Step 2: Convert to fraction form
    19,305.50/28,958.25 = 5,454.86/x
  3. Step 3: Cross multiply
    19,305.50x = 28,958.25 × 5,454.86
  4. Step 4: Simplify right side
    19,305.50x = 157,963,199.60
  5. Step 5: Solve for x
    x = 157,963,199.60/19,305.50
  6. Step 6: Final answer
    x = 8,182.29

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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.