Home / 19,973.88-29,960.73-5,181.57

Finding the Fourth Proportional to 19,973.88, 29,960.73 and 5,181.57

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Solution

The fourth proportional to 19,973.88, 29,960.73 and 5,181.57 is: 7,772.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,973.88 : 29,960.73 = 5,181.57 : x
  2. Step 2: Convert to fraction form
    19,973.88/29,960.73 = 5,181.57/x
  3. Step 3: Cross multiply
    19,973.88x = 29,960.73 × 5,181.57
  4. Step 4: Simplify right side
    19,973.88x = 155,243,619.75
  5. Step 5: Solve for x
    x = 155,243,619.75/19,973.88
  6. Step 6: Final answer
    x = 7,772.33

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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.