Home / 40,811.45-61,236-18,631.62

Finding the Fourth Proportional to 40,811.45, 61,236 and 18,631.62

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Solution

The fourth proportional to 40,811.45, 61,236 and 18,631.62 is: 27,956.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,811.45 : 61,236 = 18,631.62 : x
  2. Step 2: Convert to fraction form
    40,811.45/61,236 = 18,631.62/x
  3. Step 3: Cross multiply
    40,811.45x = 61,236 × 18,631.62
  4. Step 4: Simplify right side
    40,811.45x = 1,140,925,882.32
  5. Step 5: Solve for x
    x = 1,140,925,882.32/40,811.45
  6. Step 6: Final answer
    x = 27,956.03

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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.