Home / 19,984.16-29,965.36-6,131.36

Finding the Fourth Proportional to 19,984.16, 29,965.36 and 6,131.36

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Solution

The fourth proportional to 19,984.16, 29,965.36 and 6,131.36 is: 9,193.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.16 : 29,965.36 = 6,131.36 : x
  2. Step 2: Convert to fraction form
    19,984.16/29,965.36 = 6,131.36/x
  3. Step 3: Cross multiply
    19,984.16x = 29,965.36 × 6,131.36
  4. Step 4: Simplify right side
    19,984.16x = 183,728,409.69
  5. Step 5: Solve for x
    x = 183,728,409.69/19,984.16
  6. Step 6: Final answer
    x = 9,193.70

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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.