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Finding the Fourth Proportional to 30,624.66, 45,949.41 and 20,758.32

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Solution

The fourth proportional to 30,624.66, 45,949.41 and 20,758.32 is: 31,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,624.66 : 45,949.41 = 20,758.32 : x
  2. Step 2: Convert to fraction form
    30,624.66/45,949.41 = 20,758.32/x
  3. Step 3: Cross multiply
    30,624.66x = 45,949.41 × 20,758.32
  4. Step 4: Simplify right side
    30,624.66x = 953,832,556.59
  5. Step 5: Solve for x
    x = 953,832,556.59/30,624.66
  6. Step 6: Final answer
    x = 31,145.90

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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.