Home / 19,781.46-29,695.41-15,624.54

Finding the Fourth Proportional to 19,781.46, 29,695.41 and 15,624.54

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Solution

The fourth proportional to 19,781.46, 29,695.41 and 15,624.54 is: 23,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.46 : 29,695.41 = 15,624.54 : x
  2. Step 2: Convert to fraction form
    19,781.46/29,695.41 = 15,624.54/x
  3. Step 3: Cross multiply
    19,781.46x = 29,695.41 × 15,624.54
  4. Step 4: Simplify right side
    19,781.46x = 463,977,121.36
  5. Step 5: Solve for x
    x = 463,977,121.36/19,781.46
  6. Step 6: Final answer
    x = 23,455.15

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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.