Home / 30,709.65-45,982.44-19,555.95

Finding the Fourth Proportional to 30,709.65, 45,982.44 and 19,555.95

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Solution

The fourth proportional to 30,709.65, 45,982.44 and 19,555.95 is: 29,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,709.65 : 45,982.44 = 19,555.95 : x
  2. Step 2: Convert to fraction form
    30,709.65/45,982.44 = 19,555.95/x
  3. Step 3: Cross multiply
    30,709.65x = 45,982.44 × 19,555.95
  4. Step 4: Simplify right side
    30,709.65x = 899,230,297.52
  5. Step 5: Solve for x
    x = 899,230,297.52/30,709.65
  6. Step 6: Final answer
    x = 29,281.68

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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.