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Finding the Fourth Proportional to 25,910.51, 38,866.00 and 8,380.35

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Solution

The fourth proportional to 25,910.51, 38,866.00 and 8,380.35 is: 12,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,910.51 : 38,866.00 = 8,380.35 : x
  2. Step 2: Convert to fraction form
    25,910.51/38,866.00 = 8,380.35/x
  3. Step 3: Cross multiply
    25,910.51x = 38,866.00 × 8,380.35
  4. Step 4: Simplify right side
    25,910.51x = 325,710,662.15
  5. Step 5: Solve for x
    x = 325,710,662.15/25,910.51
  6. Step 6: Final answer
    x = 12,570.60

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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.