Home / 19,881.36-29,810.79-6,550.75

Finding the Fourth Proportional to 19,881.36, 29,810.79 and 6,550.75

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Solution

The fourth proportional to 19,881.36, 29,810.79 and 6,550.75 is: 9,822.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.36 : 29,810.79 = 6,550.75 : x
  2. Step 2: Convert to fraction form
    19,881.36/29,810.79 = 6,550.75/x
  3. Step 3: Cross multiply
    19,881.36x = 29,810.79 × 6,550.75
  4. Step 4: Simplify right side
    19,881.36x = 195,283,069.86
  5. Step 5: Solve for x
    x = 195,283,069.86/19,881.36
  6. Step 6: Final answer
    x = 9,822.42

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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.