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Finding the Fourth Proportional to 18,325, 27,440.98 and 15,355.63

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Solution

The fourth proportional to 18,325, 27,440.98 and 15,355.63 is: 22,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325 : 27,440.98 = 15,355.63 : x
  2. Step 2: Convert to fraction form
    18,325/27,440.98 = 15,355.63/x
  3. Step 3: Cross multiply
    18,325x = 27,440.98 × 15,355.63
  4. Step 4: Simplify right side
    18,325x = 421,373,535.72
  5. Step 5: Solve for x
    x = 421,373,535.72/18,325
  6. Step 6: Final answer
    x = 22,994.46

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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.