Home / 19,973.16-29,960.86-5,181.68

Finding the Fourth Proportional to 19,973.16, 29,960.86 and 5,181.68

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Solution

The fourth proportional to 19,973.16, 29,960.86 and 5,181.68 is: 7,772.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,973.16 : 29,960.86 = 5,181.68 : x
  2. Step 2: Convert to fraction form
    19,973.16/29,960.86 = 5,181.68/x
  3. Step 3: Cross multiply
    19,973.16x = 29,960.86 × 5,181.68
  4. Step 4: Simplify right side
    19,973.16x = 155,247,589.04
  5. Step 5: Solve for x
    x = 155,247,589.04/19,973.16
  6. Step 6: Final answer
    x = 7,772.81

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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.