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Finding the Fourth Proportional to 25,503.36, 38,245.92 and 8,859.36

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Solution

The fourth proportional to 25,503.36, 38,245.92 and 8,859.36 is: 13,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,503.36 : 38,245.92 = 8,859.36 : x
  2. Step 2: Convert to fraction form
    25,503.36/38,245.92 = 8,859.36/x
  3. Step 3: Cross multiply
    25,503.36x = 38,245.92 × 8,859.36
  4. Step 4: Simplify right side
    25,503.36x = 338,834,373.81
  5. Step 5: Solve for x
    x = 338,834,373.81/25,503.36
  6. Step 6: Final answer
    x = 13,285.87

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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.