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Finding the Fourth Proportional to 25,480.37, 38,203.12 and 12,976.20

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Solution

The fourth proportional to 25,480.37, 38,203.12 and 12,976.20 is: 19,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,480.37 : 38,203.12 = 12,976.20 : x
  2. Step 2: Convert to fraction form
    25,480.37/38,203.12 = 12,976.20/x
  3. Step 3: Cross multiply
    25,480.37x = 38,203.12 × 12,976.20
  4. Step 4: Simplify right side
    25,480.37x = 495,731,305.47
  5. Step 5: Solve for x
    x = 495,731,305.47/25,480.37
  6. Step 6: Final answer
    x = 19,455.42

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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.